Report: Queen Elizabeth isn't a big fan of Meghan Markle's pantsuits

What Liz says, goes. Hosiery? Check. Nude nail polish? Check. Conservative hems? Check. 

As the world's longest reigning monarch, Queen Elizabeth has seen just how much fashion and trends have fluctuated over the years. But one style the 92-year-old is still not sold on? Pantsuits! 

This style preference might present a slight snafu in the queen's relationship with Meghan Markle. The new royal has been fond of a good pair of trousers since before she entered the royal sphere -- and even sported a few powersuits during royal outings with Prince Harry during the two's engagement.

RELATED: Meghan's protocol-pushing moments

12 PHOTOS
Every time Meghan Markle has broken royal protocol
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Every time Meghan Markle has broken royal protocol

When she ditched the tights

Wearing hosiery is reportedly an unspoken rule for female members of the royal family, and one that Queen Elizabeth is a stickler for. Meghan Markle defied tradition when she went sans tights for her engagement photos.

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When she spent Christmas with Queen Elizabeth

Meghan Markle made history when she became the first fiancée to spend Christmas with the queen at her Sandringham residence. Usually, events with the queen are reserved for spouses of royals. When Kate Middleton was engaged to Prince William she wasn't given that special privilege and instead spent the holiday with her own family.

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When she wore a messy bun

There's no rule (that we know of) that claims royal ladies must have perfect blown out tresses for all royal engagements, but it's a look we've become accustomed to since Duchess Kate came into the picture in 2011 with her glossy curls and impeccable chignons. 

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When she decided to make a speech at her own wedding

In Britain, traditionally the groom, father of the bride, and the best man make speeches after the wedding. However, the former actress will make a speech at her May 19 ceremony to pay tribute to Prince Harry and his family.

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When she showed PDA with Prince Harry

Royal couples usually refrain from showing PDA in public -- a precedent set by Queen Elizabeth -- but it seems as if Meghan and Harry can't get their hands off each other!

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When she gave an autograph

Royals aren't allowed to give autographs for security reasons, but Meghan Markle made an exception for one 10-year-old girl.

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When she hugged kids

Again, for security reasons, royals are usually required to keep their hands to themselves (handshakes are okay). However, Meghan Markle defied that rule when she gave a group of children hugs while visiting a community center.

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When she wore head-to-toe black

Usually, the dark hue is reserved for somber occasions like funerals or events like Remembrance Sunday Service. In fact, you'd never see Duchess Kate stepping out in an outfit like this for any public appearance.

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When she wore a suit to a black-tie event

Meghan Markle shocked and stunned the world when she showed up to a black-tie affair with an Alexander McQueen suit on instead of a ball gown. While there's no official rule that royals must wear gowns, the move broke from tradition in a major way.

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When she wore a crossbody bag

Holding clutches during public appearances is usually the norm for members of the royal family. Because protocol states you shouldn't offer your hand to any member of the royal family, Kate opts for clutches to avoid any awkward confrontations. However, Meghan surprised everyone when she stepped out in Scotland with a crossbody.

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When she took a political stance

When she appeared alongside Duchess Kate, Prince Harry and Prince William, Meghan Markle expressed her support for the #MeToo and #TimesUp movements. It was a surprising moment considering protocol forbids members of the royal family to take sides on political issues.

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Meghan Markle's side bun

She does it again! Meghan rocked a chic side bun during a surprise trip to Ireland, but just like her messy bun, it's an uncommon style for royals to rock.

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Most recently, the Duchess of Sussex opted for the controversial style at the WellChild Awards, where she donned a chic Altuzarra number. While we were fans of the choice, it's been noted that her grandmother-in-law the queen has been particularly outspoken about her sartorial selection.  

As noted by People, Her Majesty prefers the ladies in the family to dress up in skirts or dresses -- especially during official royal engagements.

Explained a source to People, Meghan "has found certain rules in the royal household difficult to understand, like the fact that the Queen prefers women in dresses or skirts rather than trouser suits, and is often asking Harry why things have to be done in a certain way."

RELATED: See Meghan before she was a duchess

102 PHOTOS
Meghan Markle's style transformation
See Gallery
Meghan Markle's style transformation

Meghan Markle attends COACH Legacy Photo Exhibit by REED KRAKOFF at Coach on August 26, 2006 in East Hampton, NY.

(Photo by Billy Farrell/Patrick McMullan via Getty Images)

Meghan Markle during Kari Feinstein Pre-Emmy Style Lounge - Day Two in Los Angeles, California, United States.

(Photo by Jean-Paul Aussenard/WireImage)

DEAL OR NO DEAL Season 2 Pictured: Meghan Markle

(Photo by Paul Drinkwater/NBC/NBCU Photo Bank)

DEAL OR NO DEAL Season 2 Pictured: Meghan Markle

(Photo by Paul Drinkwater/NBC/NBCU Photo Bank)

Meghan Markle during George Lopez/Great Chefs of LA Event For The National Kidney Foundation at The Ritz-Carlton Marina del Rey in Marina del Rey, California, United States. (Photo by Rebecca Sapp/WireImage for Ink PR Group)
Meghan Markle at ABS/Allen Schwartz (Photo by Amy Tierney/WireImage for Primary Action) 
Meghan Markle at ABS/Allen Schwartz during Primary Action 2007 Golden Globe Suites - Day 3 at Private Residence in Los Angeles, California, United States. (Photo by Amy Tierney/WireImage for Primary Action)
BEVERLY HILLS, CA - SEPTEMBER 18: Actress Meghan Markle attends the DPA pre-Emmy Gift Lounge at the Peninsula Hotel on September 18, 2009 in Beverly Hills, California. (Photo by Amanda Edwards/Getty Images)
LOS ANGELES, CA - AUGUST 26: Actress Meghan Markle attends the Some Kind-a Gorgeous Style and Beauty Lounge at the Chateau Marmont on August 26, 2010 in Los Angeles, California. (Photo by Charley Gallay/Getty Images For Benefit Cosmetics)
SUITS -- Season 1 -- Pictured: Meghan Markle as Rachel Zane -- (Photo by: Frank Ockenfels/USA/NBCU Photo Bank via Getty Images)
SUITS -- 'Errors and Omissions' Episode103 -- Pictured: Meghan Markle as Rachel Zane (Photo by Christos Kalohoridis/NBC/NBCU Photo Bank via Getty Images)
USA NETWORKS EVENTS -- 'NBCUniversal Press Tour August 2011 USA Network Breakfast and BTS E - Rotation at the Beverly Hills Hilton Hotel' -- Pictured: (l-r) Rick Hoffman, Meghan Markle (Photo by Evans Vestal Ward/NBC/NBCU Photo Bank via Getty Images)
LOS ANGELES, CA - SEPTEMBER 21: Actress Meghan Markle attends Madewell, Alexa Chung & InStyle celebrate the launch of The Alexa Chung For Madewell Fall 2011 Collection at Chateau Marmont on September 21, 2011 in Los Angeles, California. (Photo by Charley Gallay/WireImage)
BEVERLY HILLS, CA - OCTOBER 11: Meghan Markle arrives at the Anti-Defamation League Entertainment Industry Awards dinner held at The Beverly Hilton hotel on October 11, 2011 in Beverly Hills, California. (Photo by Michael Tran/FilmMagic)
BEVERLY HILLS, CA - JANUARY 14: Actress Meghan Markle attends the HBO Luxury Lounge Featuring L?Oreal Paris And New Era Cap - Day 1 at Four Seasons Hotel Los Angeles on January 14, 2012 in Beverly Hills, California. (Photo by Joe Scarnici/WireImage)
BEVERLY HILLS, CA - JANUARY 14: Actress Meghan Markle attends the HBO Luxury Lounge Featuring L?Oreal Paris And New Era Cap - Day 1 at Four Seasons Hotel Los Angeles on January 14, 2012 in Beverly Hills, California. (Photo by Michael Kovac/WireImage)
BEVERLY HILLS, CA - JANUARY 15: Actress Meghan Markle arrives at the 13th Annual Warner Bros. And InStyle Golden Globe After Party held at The Beverly Hilton hotel on January 15, 2012 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
WEST HOLLYWOOD, CA - FEBRUARY 15: Actress Meghan Markle attends the USA Network's and The Moth's Storytelling Tour 'A More Perfect Union: Stories of Prejudice and Power' at the Pacific Design Center on February 15, 2012 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
SUITS -- Season: 2 -- Pictured: Meghan Markle as Rachel Zane -- (Photo by: Robert Ascroft/USA Network/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MAY 17: Meghan Markle attends the USA Network's 2012 Upfront Event at Alice Tully Hall on May 17, 2012 in New York City. (Photo by D Dipasupil/FilmMagic)
NEW YORK, NY - JUNE 12: Meghan Markle of Suits attends USA Network and Mr Porter.com Present 'A Suits Story' on June 12, 2012 in New York, United States. (Photo by Theo Wargo/Getty Images for NBCUniversal/USA Network)
TORONTO, ON - SEPTEMBER 11: Actress Meghan Markle attends the WGC Hosts Party With InStyle & HFPA To Celebrate TIFF at the Windsor Arms Hotel on September 11, 2012 in Toronto, Canada. (Photo by Joe Scarnici/Getty Images for WGC)
WEST HOLLYWOOD, CA - NOVEMBER 12: Actress Meghan Markle attends TV Guide Magazine's 2012 Hot List Party at SkyBar at the Mondrian Los Angeles on November 12, 2012 in West Hollywood, California. (Photo by David Livingston/Getty Images)
LOS ANGELES, CA - NOVEMBER 13: Actress Meghan Markle arrives at the GQ Men of the Year Party at Chateau Marmont on November 13, 2012 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)
BEVERLY HILLS, CA - JANUARY 13: Actress Meghan Markle arrives at NBC Universal's 70th Annual Golden Globe Awards after party held at the Beverly Hilton Hotel on January 13, 2013 in Beverly Hills, California. (Photo by Paul A. Hebert/Getty Images)
BEVERLY HILLS, CA - JANUARY 14: Actress Meghan Markle attends The Paley Center for Media's presentation of An Evening With 'Suits' at The Paley Center for Media on January 14, 2013 in Beverly Hills, California. (Photo by David Livingston/Getty Images)
WEST HOLLYWOOD, CA - JANUARY 24: Actress Meghan Markle attends the ELLE's Women in Television Celebration at Soho House on January 24, 2013 in West Hollywood, California. (Photo by Michael Kovac/Getty Images for ELLE)
LOS ANGELES, CA - JANUARY 26: Actress Meghan Markle attends the Entertainment Weekly Screen Actors Guild Awards pre-party at Chateau Marmont on January 26, 2013 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
NEW YORK, NY - MAY 16: Meghan Markle attends the USA Network 2013 Upfront event at Pier 36 on May 16, 2013 in New York City. (Photo by Michael N. Todaro/WireImage)
Actress Meghan Markle arrives on the red carpet for the MuchMusic Video Awards (MMVAs) in Toronto, June 16, 2013. REUTERS/Mark Blinch (CANADA - Tags: ENTERTAINMENT)
NEW YORK, NY - JULY 16: Meghan Markle attends Self Rocks the Summer Event on July 16, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images for SELF Magazine)
NEW YORK, NY - JULY 17: Actress Meghan Markle attends 'Tales Of Endearment' Celebration Hosted By Diane von Furstenberg at DVF Accessories Shop on July 17, 2013 in New York City. (Photo by Monica Schipper/Getty Images)
NEW YORK, NY - SEPTEMBER 07: Meghan Markle poses backstage at the Herve Leger By Max Azria fashion show during Mercedes-Benz Fashion Week Spring 2014 at The Theatre at Lincoln Center on September 7, 2013 in New York City. (Photo by Neilson Barnard/Getty Images for Mercedes-Benz Fashion Week Spring 2014)
NEW YORK, NY - SEPTEMBER 08: Actress Meghan Markle attends the Tracy Reese show during Spring 2014 Mercedes-Benz Fashion Week at The Studio at Lincoln Center on September 8, 2013 in New York City. (Photo by Brian Killian/WireImage)
NEW YORK, NY - SEPTEMBER 08: Actress Meghan Markle attends the Tracy Reese show during Spring 2014 Mercedes-Benz Fashion Week at The Studio at Lincoln Center on September 8, 2013 in New York City. (Photo by Brian Killian/WireImage)
NEW YORK, NY - SEPTEMBER 10: Meghan Markle attends the Tory Burch fashion show during Mercedes-Benz Fashion Week Spring at David H. Koch Theater at Lincoln Center on September 10, 2013 in New York City. (Photo by Cindy Ord/Getty Images for Mercedes-Benz Fashion Week Spring 2014)
NEW YORK, NY - SEPTEMBER 10: Actress Meghan Markle attends the The 2013 Novak Djokovic Benefit Dinner at Capitale on September 10, 2013 in New York City. (Photo by Noam Galai/FilmMagic)
NEW YORK, NY - SEPTEMBER 11: Actress Meghan Markle attends the Annual Charity Day Hosted By Cantor Fitzgerald And BGC at the Cantor Fitzgerald Office on September 11, 2013 in New York, United States. (Photo by Janette Pellegrini/Getty Images for Cantor Fitzgerald)
NEW YORK, NY - SEPTEMBER 11: Actress Meghan Markle leaves the Mercedes-Benz Fashion Week at Lincoln Center for the Performing Arts on September 11, 2013 in New York City. (Photo by Ray Tamarra/Getty Images)
NEW YORK, NY - SEPTEMBER 11: Model Meghan Markle arrives at the Marchesa runway show during Mercedes-Benz Fashion Week Spring 2014 at The New York Public Library on September 11, 2013 in New York City. (Photo by Vivien Killilea/Getty Images)
NEW YORK, NY - OCTOBER 02: Actress Meghan Markle attends the Gala Tribute To Cate Blanchett during the 51st New York Film Festival at Alice Tully Hall at Lincoln Center on October 2, 2013 in New York City. (Photo by Taylor Hill/FilmMagic)
NEW YORK, NY - OCTOBER 30: Actress Meghan Markle attends American Ballet Theatre 2013 Opening Night Fall Gala at David Koch Theatre at Lincoln Center on October 30, 2013 in New York City. (Photo by Gary Gershoff/WireImage)
US actress Meghan Markle poses for pictures on the red carpet upon arrival for the world premier of the film 'The Hunger Games: Catching Fire' in Leicester Square, central London, on November 11, 2013. The dystopian universe of 'The Hunger Games' returns to cinema screens aiming to harness the star power of Oscar-winning actress Jennifer Lawrence and convey an unambiguous message of youthful rebellion. AFP PHOTO/ANDREW COWIE (Photo credit should read ANDREW COWIE/AFP/Getty Images)
LONDON, ENGLAND - NOVEMBER 11: Meghan Markle attends the UK Premiere of 'The Hunger Games: Catching Fire' at Odeon Leicester Square on November 11, 2013 in London, England. (Photo by Dave J Hogan/Getty Images)
LONDON, ENGLAND - NOVEMBER 19: Meghan Markle attends the London Global Gift Gala at ME Hotel on November 19, 2013 in London, England. (Photo by Karwai Tang/WireImage)
NBCUNIVERSAL EVENTS -- NBCUniversal Press Tour, January 2014 -- Pictured: (l-r) Gina Torres, Star 'Suits'; Bonnie Hammer, Chairman, NBCUniversal Cable Entertainment Group; Meghan Markle, Star 'Suits'; Sarah Rafferty, Star 'Suits'; Jackie De Crinis, Executive Vice President of Original Programming, USA Network -- (Photo by: Paul Drinkwater/Network/NBCU Photo Bank via Getty Images)
PASADENA, CA - JANUARY 19: Actress Meghan Markle attends the NBC/Universal 2014 TCA Winter Press Tour held at The Langham Huntington Hotel and Spa on January 19, 2014 in Pasadena, California. (Photo by Tommaso Boddi/WireImage)
WEST HOLLYWOOD, CA - JANUARY 22: Actress Meghan Markle attends ELLE's Annual Women in Television Celebration on January 22, 2014 in West Hollywood, California. (Photo by Stefanie Keenan/Getty Images for Elle)
NEW YORK, NY - JANUARY 30: Actress Meghan Markle attends the 3rd Annual NFL Characters Unite at Sports Illustrated on January 30, 2014 in New York City. (Photo by Cindy Ord/Getty Images)
NEW YORK, NY - JANUARY 31: Actress Meghan Markle attends DirecTV Beach Bowl 2014 at the Gansevoort Hotel on January 31, 2014 in New York City. (Photo by Astrid Stawiarz/Getty Images for DirecTV)
NEW YORK, NY - FEBRUARY 01: Model Meghan Markle attends DIRECTV's 8th Annual Celebrity Beach Bowl at Pier 40 on February 1, 2014 in New York City. (Photo by Gilbert Carrasquillo/FilmMagic)
NEW YORK, NY - FEBRUARY 06: Actress Meghan Markle attends the Marc Jacobs Daisy Chain Tweet Pop Up Shop Party at Marc Jacobs Pop Up Shop on February 6, 2014 in New York City. (Photo by Bennett Raglin/Getty Images)
NEW YORK, NY - FEBRUARY 08: Meghan Markle is seen on February 8, 2014 in New York City. (Photo by NCP/Star Max/GC Images)
NEW YORK, NY - FEBRUARY 11: Meghan Markle wearing Miu Miu at Miu Miu Women's Tales 7th Edition - 'Spark & Light' Screening - Arrivals at Diamond Horseshoe on February 11, 2014 in New York City. (Photo by Bryan Bedder/Getty Images for Miu Miu)
NEW YORK, NY - MAY 15: Meghan Markle attends the 2014 NBCUniversal Cable Entertainment Upfronts at The Jacob K. Javits Convention Center on May 15, 2014 in New York City. (Photo by D Dipasupil/FilmMagic)
NEW YORK, NY - SEPTEMBER 05: Model Meghan Markle attends Peter Som during MADE Fashion Week Spring 2015 at Milk Studios on September 5, 2014 in New York City. (Photo by Paul Morigi/WireImage)
NEW YORK, NY - SEPTEMBER 05: Model Meghan Markle (L) and actress Jamie Chung attend an exclusive preview of the Marchesa Voyage for ShopStyle collection on September 5, 2014 in New York City. (Photo by Neilson Barnard/Getty Images for ShopStyle)
NEW YORK, NY - OCTOBER 01: Meghan Markle attends RELAIS & CHATEAUX 60th Anniversary Guest Chef Dinner Launch at Consulate General of France on October 1, 2014 in New York City. (Photo by Bryan Bedder/Getty Images for Relais & Chateaux)
TORONTO, ON - OCTOBER 08: Actress Meghan Markle attends the Jimmy Choo opening at Yorkdale Shopping Mall on October 8, 2014 in Toronto, Canada. (Photo by George Pimentel/WireImage)
DUBLIN, IRELAND - OCTOBER 17: Meghan Markle, american actress, model and spokesperson attends the 'Bridging the Gender Gap' special session at the Convention Centre on October 17, 2014 in Dublin, Ireland. The summit, which is in its fifth year, connects and guides young talent from around the world with global leaders and public figures acting as One Young World counsellors. This year's theme is Peace and Conflict Resolution and will use Ireland's history as an example to guide discussion. (Photo by Clodagh Kilcoyne/Getty Images)
TORONTO, ON - OCTOBER 22: Meghan Markle attends Hudson's Bay And The Isabella Blow Foundation Present Fashion Blows at The Hudson's Bay on October 22, 2014 in Toronto, Canada. (Photo by Sonia Recchia/WireImage)
NEW YORK, NY - OCTOBER 28: Model Meghan Markle attends the Elton John AIDS Foundation's 13th Annual An Enduring Vision Benefit at Cipriani Wall Street on October 28, 2014 in New York City. (Photo by Jamie McCarthy/WireImage)
NEW YORK, NY - FEBRUARY 12: Actress Meghan Markle attends Prada The Iconoclasts, New York 2015 on February 12, 2015 in New York City. (Photo by Neilson Barnard/Getty Images For Prada)
NEW YORK, NY - FEBRUARY 13: Actress Meghan Markle attends Wes Gordon runway show during MADE Fashion Week Fall 2015 at Milk Studios on February 13, 2015 in New York City. (Photo by Mireya Acierto/Getty Images)
LONDON, ENGLAND - MARCH 03: Amber Nuttall (L) and Meghan Markle attend the premiere of 'A Postcard From Istanbul' directed by John Malkovich in collaboration with St. Regis Hotels & Resorts at 5 Hertford Street on March 3, 2015 in London, England. (Photo by David M. Benett/Getty Images)
NEW YORK, NY - MARCH 10: Meghan Markle attends Step It Up for Gender Equality Celebrates The 20th Anniversary Of The Fourth World Conference On Women In Beijing at Hammerstein Ballroom on March 10, 2015 in New York City. (Photo by Esther Horvath/FilmMagic)
TORONTO, ON - OCTOBER 01: Actress Meghan Markle attends World MasterCard Fashion Week Fall 2015 Collections Day 3 at David Pecaut Square on March 25, 2015 in Toronto, Canada. (Photo by George Pimentel/WireImage)
SUITS -- Season:5 -- Pictured: Meghan Markle as Rachel Zane -- (Photo by: Nigel Parry/USA Network/NBCU Photo Bank via Getty Images)
NBCUNIVERSAL CABLE ENTERTAINMENT UPFRONT -- '2015 NBCUniversal Cable Entertainment Upfront at the Javits Center in New York City on Thursday, May 14, 2015' -- Pictured: Meghan Markle, 'Suits' on USA Network -- (Photo by: Peter Kramer/NBCUniversal Cable Entertainment/NBCU Photo Bank via Getty Images)
NEW YORK, NY - JUNE 02: Meghan Markle attends The UJA-Federation of New York's Entertainment Division Signature Gala at 583 Park Avenue on June 2, 2015 in New York City. (Photo by Stephen Lovekin/Getty Images)
NEW YORK, NY - JUNE 24: Actress Meghan Markle attends the 2015 NBC New York Summer Press Day at Four Seasons Hotel New York on June 24, 2015 in New York City. (Photo by Mireya Acierto/FilmMagic)
TORONTO, ON - OCTOBER 06: Actress and United Nations Women's Advocate, Meghan Markle, sharing the new Dove Self-Esteem Project resources with youth workers and helping young girls reach their full potential at Earl Bales Community Centre on October 6, 2015 in Toronto, Canada. (Photo by George Pimentel/Getty Images)
Meghan Markle attends 'The Twelfth Annual CFDA/Vogue Fashion Fund Awards' at Spring Studios in New York City. �� LAN (Photo by Lars Niki/Corbis via Getty Images)
TORONTO, ON - NOVEMBER 24: Actress Meghan Markle attends the Equinox Yorkville Dinner held at Kasa Moto on November 24, 2016 in Toronto, Canada. (Photo by George Pimentel/WireImage)
WEST HOLLYWOOD, CA - JANUARY 20: Actress Meghan Markle attends ELLE's 6th Annual Women In Television Dinner at Sunset Tower Hotel on January 20, 2016 in West Hollywood, California. (Photo by Jason Kempin/Getty Images)
LOS ANGELES, CA - JANUARY 21: Actress Meghan Markle attends the premiere of USA Network's 'Suits' season 5 held at Sheraton Los Angeles Downtown Hotel on January 21, 2016 in Los Angeles, California. (Photo by Tommaso Boddi/WireImage)
NEW YORK, NY - MARCH 17: Actress Meghan Markle attends AOL Build Presents 'Suits' at AOL Studios In New York on March 17, 2016 in New York City. (Photo by Brad Barket/Getty Images)
NEW YORK - MARCH 18: Meghan Markle seen at the Today Show on March 18, 2016 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK - MARCH 18: Meghan Markle seen at the Today Show on March 18, 2016 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
TORONTO, ON - MARCH 22: Actress Meghan Markle attends the World Vision event held at Lumas Gallery on March 22, 2016 in Toronto, Canada. (Photo by George Pimentel/WireImage)
TORONTO, ON - APRIL 15: Actress Meghan Markle poses in the CAFA portrait studio at The Fairmont Royal York Hotel on April 15, 2016 in Toronto, Canada. (Photo by George Pimentel/Getty Images Portrait)
NEW YORK, NY - APRIL 27: Actress Meghan Markle attends Glamour and L'Oreal Paris Celebrate 2016 College Women Of The Year at NoMad Hotel Rooftop on April 27, 2016 in New York City. (Photo by Nicholas Hunt/Getty Images for Glamour)
TORONTO, ON - APRIL 28: Actress Meghan Markle attends the Roland Mouret private dinner at Corkin Gallery on April 28, 2016 in Toronto, Canada. (Photo by GP Images/WireImage)
TORONTO, ON - OCTOBER 01: Actress Meghan Markle attends Sephora Unveils Toronto Eaton Centre Remodel at Toronto Eaton Centre on May 19, 2016 in Toronto, Canada. (Photo by George Pimentel/WireImage)
LOS ANGELES, CA - MAY 20: Meghan Markle arrives at the P.S. Arts' The Party held at NeueHouse Hollywood on May 20, 2016 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
TORONTO, ON - MAY 31: Actress Meghan Markle attends the Instagram Dinner held at the MARS Discovery District on May 31, 2016 in Toronto, Canada. (Photo by George Pimentel/WireImage)
TORONTO, ON - JUNE 09: Actress Meghan Markle attends Luminato Big Bang Bash 2016 held at the Hearn Generating Station on June 9, 2016 in Toronto, Canada. (Photo by George Pimentel/WireImage)
LONDON, ENGLAND - JUNE 28: Meghan Markle attends day two of the Wimbledon Tennis Championships at Wimbledon on June 28, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 04: Meghan Markle attends day eight of the Wimbledon Tennis Championships at Wimbledon on July 04, 2016 in London, England. (Photo by Karwai Tang/WireImage)
NEW YORK, NY - JULY 13: Actress Meghan Markle leaves the 'Today Show' taping at NBC Rockefeller Center Studios on July 13, 2016 in New York City. (Photo by Ray Tamarra/GC Images)
NEW YORK, NY - JULY 14: Actress Meghan Markle leaves the 'Today Show' taping at NBC Rockefeller Center Studios on July 14, 2016 in New York City. (Photo by Ray Tamarra/GC Images)
NEW YORK, NY - JULY 14: Actress Meghan Markle enters the 'Today Show' taping at NBC Rockefeller Center Studios on July 14, 2016 in New York City. (Photo by Ray Tamarra/GC Images)
Britain's Prince Harry (R) arrives with girlfriend actress Meghan Markle at the wheelchair tennis event during the Invictus Games in Toronto, Ontario, Canada September 25, 2017. REUTERS/Mark Blinch
Britain's Prince Harry poses with Meghan Markle in the Sunken Garden of Kensington Palace, London, Britain, November 27, 2017. REUTERS/Toby Melville
Meghan Markle arrives to visit radio station Reprezent FM, with her fiancee Britain's Prince Harry, in Brixton, London January 9, 2018. REUTERS/Dominic Lipinski/Pool
Crowds greet Britain's Prince Harry's fiancee Meghan Markle during a visit to Cardiff Castle in Cardiff, Britain, January 18, 2018. REUTERS/Ben Birchall/Pool
Britain's Prince Harry and his fiancee Meghan Markle arrive to attend the annual Endeavour Fund Awards at Goldsmiths' Hall in London, Britain February 1, 2018. REUTERS/Ben Stansall/Pool
Meghan Markle, the fiancee of Britain's Prince Harry, meets members of the public during a walkabout on the esplanade at Edinburgh Castle, Britain, February 13, 2018. REUTERS/Jane Barlow/Pool
Britain's Prince Harry and his fiancee Meghan Markle arrive at the Commonwealth Service at Westminster Abbey in London, Britain, March 12, 2018. REUTERS/Peter Nicholls
Britain's Prince Harry and his fiancee Meghan Markle arrive for a visit to the Eikon Exhibition Centre in Lisburn, Northern Ireland March 23, 2018. Arthur Edwards/Pool via Reuters
Britain's Prince Harry (UNSEEN) and his fiancee Meghan Markle, visit a science park called Catalyst Inc., during a visit to Belfast, Northern Ireland March 23, 2018. Chris Jackson/Pool via Reuters
LONDON, ENGLAND - APRIL 23: Meghan Markle attends the 25th Anniversary Memorial Service to celebrate the life and legacy of Stephen Lawrence at St Martin-in-the-Fields on April 23, 2018 in London, England. (Photo by Jeff Spicer/Getty Images)
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While Duchess Kate has been known to prefer a dress to pants, she has been pictured in trousers while on the job in the past. Likewise, protocol-pusher Princess Diana was also a fan of the tuxedo look, opting for a nice pantsuit for plenty of royal occasions.

The Duke and Duchess of Sussex will be heading to Australia in the fall for their first royal tour, so we're interested to see how she incorporates these new rules into her style!

More on that in the video above.

RELATED: Princess Diana throughout her life 

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Princess Diana's life in photos
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Princess Diana's life in photos
UNITED KINGDOM - JULY 01: An informal study of Prince CHARLES, the Prince of Wales, and Lady Diana SPENCER, whose wedding will take place at Saint-Paul's Cathedral, London on 29th July 1981. (Photo by Keystone-France/Gamma-Keystone via Getty Images)
Princess Diana wearing a tiara and diamond necklace on an official visit to Australia, April 12th 1983. (Photo by Tim Graham/Getty Images)
LONDON - JULY 29: (FILE PHOTO) Prince Charles, Prince of Wales and Diana, Princess of Wales leave St. Paul's Cathedral following their wedding July 29, 1981 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON - JULY 29: Diana, Princess of Wales and Prince Charles ride in a carriage after their wedding at St. Paul's Cathedral July 29, 1981 in London, England. (Photo by Anwar Hussein/WireImage)
Prince Charles and Diana, Princess of Wales (1961 - 1997) pose together during their honeymoon in Balmoral, Scotland, 19th August 1981. (Photo by Serge Lemoine/Getty Images)
Princess Diana wearing a Jasper Conran suit during a visit to a community centre in Brixton, October 1983. (Photo by Princess Diana Archive/Getty Images)
PARIS, FRANCE: Britain's Princess Diana arrived in Paris Friday, 13 November, 1992, on a private three day visit she is making without her husband, Prince Charles. (Photo credit should read JOEL ROBINE/AFP/Getty Images)
HONG KONG, HONG KONG: Britain's Princess Diana stands with tennis players Michael Chang of the US (L) and Sweden's Jonas Bjorkman during the awards ceremony at the Hong Kong Open 23 April. Princess Diana, on a private visit to Hong Kong, watched as Chang defeated Bjorkman 6-3, 6-1 to win the tournament. AFP PHOTO (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)
The Princess of Wales visits Chinatown in Liverpool, April 1982. She is pregnant with Prince William, and wearing a pink wool maternity coat by Bellville Sassoon and a hat by John Boyd. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)
WINDSOR, UNITED KINGDOM - JUNE 06: Princess Diana At Polo, Just Two Weeks Before The Birth Of Her First Child, Prince William. Wearing A Maternity Dress Designed By Fashion Designer Catherine Walker She Is Walking With Sarah Ferguson. (Photo by Tim Graham/Getty Images)
LONDON - JUNE 22: New born Prince William with Diana, Princess of Wales and Prince Charles leave St. Mary's hospital on June 22, 1982 in Paddington, London, England,. He was born in the Lindo Wing of the hospital on June 21. (Photo by David Levenson/Getty Images)
LONDON, UNITED KINGDOM - FEBRUARY 01: Princess Diana Holding Her Baby Son, Prince William, At Kensington Palace. (Photo by Tim Graham/Getty Images)
NEW ZEALAND - APRIL 18: Princess Diana And Prince William In New Zealand. (Photo by Tim Graham/Getty Images)
(FILES) This picture taken 17 June 1997 shows Diana, Princess of Wales, a key volunteer of the British Red Cross Landmine Campaign at Red Cross headquarters in Washington DC. Princess Diana may have survived her fatal Paris car crash in 1997 if French medical staff had not wasted precious time, a leading British surgeon indicated at her inquest 19 November 2007. AFP PHOTO/FILES/Jamal (Photo credit should read JAMAL A. WILSON/AFP/Getty Images)
The Prince and Princess of Wales visit Barmouth in Wales, November 1982. She wears a suede beret by John Boyd and a coatdress by Arabella Pollen. (Photo by Terry Fincher/Princess Diana Archive/Getty Images)
The Princess of Wales visits University College Hospital in London, December 1982. She wears a John Boyd hat and a velvet suit by Caroline Charles. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)
LONDON, UNITED KINGDOM - FEBRUARY 01: Princess Diana And Prince Charles With Prince William And His Koala Bear Toy At Kensington Palace (Photo by Tim Graham/Getty Images)
Princess Diana (1961 - 1997) at the School of the Air, in Alice Springs, Australia, 30th March 1983. She is wearing a dress by Jan van Velden. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)
AYERS ROCK, AUSTRALIA - MARCH 21: Prince Charles, The Prince Of Wales And Diana, Princess Of Wales Standing In Front Of Ayers Rock During Their Official Tour Of Australia (Photo by Tim Graham/Getty Images)
NEW ZEALAND - APRIL 18: Princess Diana During A Visit To New Zealand Wearing A Dress Designed By Fashion Designer Donald Campbell (Photo by Tim Graham/Getty Images)
MANUKAU - APRIL 19: Diana Princess of Wales meets firemen during a visit to Manukau, near Auckland, New Zealand during the Royal Tour of New Zealand on April 19, 1983. Princess Diana wore a suit designed by Jan Van Velden, with a hat by John Boyd. (Photo by David Levenson/Getty Images)
CANADA - JUNE 23: Princess Diana in Edmonton during an official visit of Canada (Photo by Tim Graham/Getty Images)
Princess Diana (1961 - 1997) leaving St Mary's Hospital, London with her new-born son Prince Harry, September 1984. She is wearing a red coat by Jan van Velden. (Photo by Terry Fincher/Princess Diana Archive/Getty Images)
VENICE, ITALY - MAY 5: (FILE PHOTO) (L-R) Diana the Princess of Wales holds her son Harry, whilst looking at Prince William held by his father Prince Charles on May 5, 1985 in Venice, Italy. Prince William will celebrate his 21st birthday on June 21, 2003. (Photo by Georges de Keerle/Getty Images) 
LA SPEZIA, ITALY - APRIL 20: The Prince and Princess of Wales in La Spezia during a tour of Italy. (Photo by Tim Graham/Getty Images)
TWERTON ON AVON - MAY 31: Diana Princess of Wales meets girl guides outside the Poolemead centre for the Deaf on May 31, 1985 in Twerton on Avon, Bath, Avon. (Photo by David Levenson/Getty Images)
CANADA - JULY 01: Diana Princess of Wales celebrates her birthday in Canada (Photo by Tim Graham/Getty Images)
Princess Diana (1961 - 1997) inspects a guard of honour during a two-day visit to the 1st Battalion, the Royal Hampshire Regiment in Berlin, October 1985. She is wearing a pink and black suit by Victor Edelstein and a hat by Frederick Fox. (Photo by Lucy Levenson/Princess Diana Archive/Getty Images)
UNITED KINGDOM - OCTOBER 04: Diana, Princess of Wales with her sons, Prince William and Prince Harry, at the piano in Kensington Palace (Photo by Tim Graham/Getty Images)
KLOSTERS, SWITZERLAND - FEBRUARY 06: Prince Charles With Princess Diana On A Ski-ing Holiday Together. The Princess Is Wearing A Red 'head' Ski Suit And A Headband And She Is Holding A Pair Of 'dynamic' Skis. The Prince Is Wearing A Blue Ski Suit And Carrying A Pair Of 'k2' Skis. (Photo by Tim Graham/Getty Images)
VIENNA - APRIL 16: Diana, Princess of Wales, wearing a sapphire diamond and pearl necklace, attends a banquet on April 16, 1986 in Vienna, Austria (Photo by Anwar Hussein/Getty Images)
TETBURY, UNITED KINGDOM - JULY 18: Princess Diana Carries Prince Henry (harry) On Her Shoulders At Highgrove. (Photo by Tim Graham/Getty Images)
UNITED KINGDOM - AUGUST 22: PRINCESS DIANA ON BOARD HMS TRAFALGAR NUCLEAR SUBMARINE MEETING THE CREW DURING A VISIT TO THE NAVAL SUBMARINE BASE IN FASLANE IN THE FIRTH OF CLYDE, SCOTLAND (Photo by Tim Graham/Getty Images)
SANDHURST - APRIL 10: Diana, Princess of Wales wears a Catherine Walker white suit with drum majorette gold frogging and epaulettes and a graham smith hat for her visit to the Sandhurst Military Academy on April 10, 1987 in Sandhurst, England (Photo by Anwar Hussein/Getty Images)
Princess Diana and Prince Charles of Wales attending a Lionel Richie concert at Wembley Arena, London, November 7th 1987. (Photo by Dave Hogan/Getty Images)
The Prince And Princess Of Wales At A Prizegiving, At Polo, Smiths Lawn, Windsor. (Photo by Julian Parker/UK Press via Getty Images)
Diana, The Princess Of Wales, And Prince William, At A Polo Match, Smiths Lawn, Windsor. (Photo by Julian Parker/UK Press via Getty Images)
ABERDEEN, SCOTLAND - AUGUST 14: Princess Diana With Her Sons Prince William And Prince Harry At Aberdeen Airport. (Photo by Tim Graham/Getty Images)
MAJORCA, SPAIN - AUGUST 10: Diana, Princess of Wales with Prince Harry on holiday in Majorca, Spain on August 10, 1987. (Photo by Georges De Keerle/Getty Images)
Princess Diana (1961 - 1997) driving an armoured vehicle with the Royal Hampshire Regiment at Tidworth, Hampshire, 23rd June 1988. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)
CHAMBORD, FRANCE - NOVEMBER 09: Diana, Princess of Wales, wearing a white and blue lace and sequin evening coat-dress designed by Catherine Walker for a dinner at the Chateau de Chambord during her official visit to France. (Photo by Tim Graham/Getty Images)
The Princess of Wales at the museum in Kuwait City, March 1989. She is wearing a gold embroidered bedouin gown that was presented to her with a silver tea set to mark the occasion of her visit. (Photo by Jayne Fincher/Getty Images)
The Princess of Wales with her sons William and Harry on the chair lift during a skiing holiday in Lech, Austria, April 1991. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)
LONDON, ENGLAND - MARCH 7 Diana, Princess of Wales attends the Premiere of Dangerous Liaisons, in London's West End, on March 7, 1989 in London, United Kingdom. (Photo by Julian Parker/UK Press via Getty Images)
ABU DHABI, UNITED ARAB EMIRATES - MARCH 15: The Prince And Princess Of Wales attend a desert picnic on March 15, 1989 in Adu Dhab, United Arab Emirates. (Photo by Georges De Keerle/Getty Images)
BATH - MAY 30: (FILE PHOTO) Prince William, Diana, Princess of Wales, Prince Harry and Charles, Prince of Wales, attend the wedding of the Duke of Hussey's daughter in May, 1989 in Bath, England. (Photo by Anwar Hussein/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 11: Princess Diana With Her Sons Prince William And Prince Harry Standing On The Steps Of Wetherby School On The First Day For Prince Harry. (Photo by Tim Graham/Getty Images)
INDONESIA - NOVEMBER 05: The Princess Of Wales Playing Bowls At Sitanalia Leprosy Hospital In Indonesia (Photo by Tim Graham/Getty Images)
NIGERIA - JUNE 3: (FILE PHOTO) (PRINCESS DIANA RETROSPECTIVE 17 OF 22) The Princess of Wales speaks with Nigerians circa 1990 during a visit to Nigeria. Princess Diana, 36-years-old, died with her companion Dodi Fayed, 41-years-old, in a car crash August 31, 1997 in Paris, France. Fayed was the son of an Egyptian billionaire. (Photo by Georges De Keerle/Getty Images)
The Princess of Wales and the Queen Mother in an open-topped landau on their way to the Royal Ascot race meeting, June 1990. The Princess wears a Catherine Walker suit and a Philip Somerville hat. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)
The Princess of Wales walks amongst crowds of children waving flags during her visit to Cullompton in Devon, September 1990. She is wearing a Catherine Walker dress. (Photo by Terry Fincher/Princess Diana Archive/Getty Images)
WASHINGTON, UNITED STATES - OCTOBER 05: Princess Diana With Mrs Barbara Bush At The White House (Photo by TIM GRAHAM/Getty Images)
Diana, The Princess Of Wales Takes Her Sons, Prince'S William, And Harry Out On The Boat ' Maid Of The Mist ' To View Niagara Falls. (Photo by Julian Parker/UK Press via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 18: Diana Princess of Wales attends the Premiere of Hot Shots, in London's West End, on November 18, 1991 in London, United Kingdom. (Photo by Julian Parker/UK Press via Getty Images)
The Princess of Wales (1961 - 1997) talks to children at the British school in Seoul during a visit to Korea, 1992. (Photo by Linda Grove/Getty Images)
INDIA - FEBRUARY 11: Diana Princess of Wales sits in front of the Taj Mahal during a visit to India (Photo by Tim Graham/Getty Images)
CALCUTTA;INDIA - FEBRUARY: Princess Diana the Princess of Wales holds hands with a nun at Mother Teresa's Hospice in Calcutta during her visit to India in February of 1992. (Photo by Anwar Hussein/Getty Images)
GIZA, EGYPT - MAY 12: Diana Princess of Wales visiting the Pyramids in Giza during an official tour of Egypt. (Photo by Tim Graham/Getty Images)
EGYPT - MAY 13: Diana, Princess of Wales in teh Alazhar Mosque, Cairo, Egypt (Photo by Tim Graham/Getty Images)
LONDON, ENGLAND - JUNE 13: Diana, Princess of Wales, Queen Elizabeth, The Queen Mother, and Prince Harry, attend the Trooping The Colour Ceremony on June 13, 1992 in London, United Kingdom. (Photo by Julian Parker/UK Press via Getty Images)
Princess Diana (1961 - 1997) on a skiing holiday in Lech, Austria, March 1993. (Photo by Jayne Fincher/Getty Images)
Princess Diana (1961 - 1997) meets local people during a field visit to Red Cross projects in the remote mountain villages of Nepal, 3rd March 1993. (Photo by Princess Diana Archive/Getty Images)
Diana Princess Of Wales, Prince William & Prince Harry Visit The 'Thorpe Park' Amusement Park. (Photo by Julian Parker/UK Press via Getty Images)
Princess Diana (1961 - 1997) during a visit to the Red Cross borehole project for refugees in Zimbabwe, July 1993. She is wearing a safari suit by Catherine Walker. (Photo by Jayne Fincher/Getty Images)
Princess Diana (1961 - 1997), Prince Harry, Prince William and Prince Charles at a parade in the Mall, London, during V.J. Day commemorations, August 1994. Diana is wearing a Tomasz Starzewski suit and a hat by Philip Somerville. (Photo by Terry Fincher/Getty Images)
UNITED KINGDOM - MAY 20: Princess Diana Reviewing The Troops Of The Princess Of Wales Regiment In Kent. The Princess Is Wearing A Pink Suit Designed By Versace. (Photo by Tim Graham/Getty Images)
Diana, Princess Of Wales Attends The Serpentine Gallery Summer Party. (Photo by Julian Parker/UK Press via Getty Images)
LONDON -OCTOBER 08: Diana, Princess of Wales laughs as she visits the London Lighthouse, the HIV/Aids charity, to help launch it's £1.5 million Capital Appeal on October 08, 1996 in London, England . (Photo by Anwar Hussein/Getty Images)
Diana, Princess of Wales at Costume Institute Gala at Metropolitan Museum of Art for a benefit ball. (Photo By: Richard Corkery/NY Daily News via Getty Images)
ANGOLA - JANUARY 15: Diana, Princess of Wales wearing protective body armour, visits a minefield being cleared by the chirty Halo in Huambo, Angola (Photo by Tim Graham/Getty Images)
WINDSOR, UNITED KINGDOM - MARCH 09: Official Portrait Of The Royal Family On The Day Of Prince William's Confirmation. Front Left To Right - Prince William, Princess Diana, Prince William, Prince Charles And The Queen. Back Left To Right - King Constantine, Lady Susan Hussey, Princess Alexandra, Duchess Of Westminster And Lord Romsey (Photo by Tim Graham Picture Library/Getty Images)
GREAT BRITAIN - JUNE 06: Diana, Princess of Wales crouching down to embrace a pupil at the Shri Swaminarayan Mandir in Neasden (Photo by Tim Graham/Getty Images)
Diana, The Princess Of Wales Visits Washington, Usa.Gala Dinner Held By The American Red Cross, To Raise Funds For Landmine Victims Around The World. . (Photo by Mark Cuthbert/UK Press via Getty Images)
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