Harry Styles mourns heartbreaking family loss as stepfather Robin Twist passes away at 57

Harry Styles' family is in mourning as they grieve the loss of Harry's stepdad, who died this week at 57.

"Harry's stepfather, Robin Twist, sadly passed away this week after a long battle with cancer. The family asks for privacy at this time," a rep for Styles told People in a statement.

Robin has been close to Harry for well over decade: He helped raise Harry and his sister, Gemma, since Harry was just 7 years old.

In June 2013, Robin wed Harry's mother, Anne. Harry served as best man at the wedding and walked his mom down the aisle. Earlier this month, Anne publicly honored the couple's four-year anniversary with a sweet Instagram photo.

Thank you for all the anniversary wishes. ❤️

A post shared by Anne (@annetwist) on

Fans are showing their support for the family on Twitter with the hashtag #RIPRobin.

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Harry Styles out and about
LONDON, ENGLAND - OCTOBER 06: Harry Styles Sighting in South Kensington on October 6, 2016 in London, England. (Photo by Mark Robert Milan/GC Images)
LONDON, ENGLAND - MARCH 10: (EXCLUSIVE COVERAGE) Harry Styles is pictured getting a parking ticket on March 10th, 2016 in London,England. (Photo by Crowder/Legge/GC Images)
LOS ANGELES, CA - JANUARY 20: Harry Styles is seen at LAX on January 20, 2016 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
BEVERLY HILLS, CA - FEBRUARY 14: Recording artist Harry Styles attends the 2016 Pre-GRAMMY Gala and Salute to Industry Icons honoring Irving Azoff at The Beverly Hilton Hotel on February 14, 2016 in Beverly Hills, California. (Photo by Lester Cohen/WireImage)
LOS ANGELES, CA - DECEMBER 31: (L-R) Singers Liam Payne, Niall Horan, Louis Tomlinson and Harry Styles of One Direction attend Dick Clark's New Year's Rockin' Eve with Ryan Seacrest 2016 on December 31, 2015 in Los Angeles, CA. (Photo by Mark Davis/DCNYRE2016/Getty Images for dcp)
BIRMINGHAM, ENGLAND - DECEMBER 10: Liam Payne, Louis Tomlinson, Harry Styles and Niall Horan of One Direction attend the BBC Music Awards at Genting Arena on December 10, 2015 in Birmingham, England. (Photo by Karwai Tang/WireImage)
LOS ANGELES, CA - DECEMBER 04: Recording artist Harry Styles of One Direction performs at 102.7 KIIS FM's Jingle Ball 2015 presented by Capital One at Staples Center on December 4, 2015 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - DECEMBER 04: Harry Styles arrives at the 102.7 KIIS FM's Jingle Ball at Staples Center on December 4, 2015 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - DECEMBER 04: Recording artists Harry Styles (L) and Liam Payne of One Direction perform onstage during 102.7 KIIS FM�s Jingle Ball 2015 Presented by Capital One at STAPLES CENTER on December 4, 2015 in Los Angeles, California. (Photo by Kevin Winter/Getty Images for iHeartMedia)
LOS ANGELES, CA - DECEMBER 04: Harry Styles of One Direction performs during the KIIS FM� Jingle Ball 2015 presented by Capital One on December 4, 2015 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - DECEMBER 04: (EDITORS NOTE: IMAGE WAS PROCESSED USING DIGITAL FILTERS) Recording artist Harry Styles of music group One Direction performs onstage during 102.7 KIIS FMÂs Jingle Ball 2015 Presented by Capital One at STAPLES CENTER on December 4, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for iHeartMedia)
SAN JOSE, CA - DECEMBER 02: Singer Harry Styles of One Direction performs during the 6th Annual 99.7 NOW! Triple Ho Show at SAP Center on December 2, 2015 in San Jose, California. (Photo by C Flanigan/FilmMagic)
DALLAS, TX - DECEMBER 01: Niall Horan, Harry Styles, Liam Payne, and Louis Tomlinson of One Direction attend 106.1 KISS FM's Jingle Ball at American Airlines Center on December 1, 2015 in Dallas, Texas. (Photo by Taylor Hill/FilmMagic)
MEXICO CITY, MEXICO - NOVEMBER 25: (L-R) Harry Styles, Niall Horan, Liam Payne and Louis Tomlinson of One Direction attend a press conference and photo call to promote One Direction's album Made in the A.M. at Four Seasons Hotel on November 25, 2015 in Mexico City, Mexico. (Photo by Victor Chavez/WireImage)
LOS ANGELES, CA - NOVEMBER 22: Singer Harry Styles of One Direction arrives at the 2015 American Music Awards at Microsoft Theater on November 22, 2015 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - NOVEMBER 22: (L-R) Recording artists Niall Horan, Harry Styles, Louis Tomlinson and Liam Payne of One Direction attend the 2015 American Music Awards at Microsoft Theater on November 22, 2015 in Los Angeles, California. (Photo by Jeff Kravitz/AMA2015/FilmMagic)
LOS ANGELES, CA - NOVEMBER 19: Harry Styles of the band 'One Direction' is seen performing on 'Jimmy Kimmel Live' on November 19, 2015 in Los Angeles, California. (Photo by RB/Bauer-Griffin/GC Images)
LONDON, ENGLAND - NOVEMBER 12: Harry Styles of One Direction leaves The Maida Vale Studios on November 12, 2015 in London, England. (Photo by SAV/GC Images)
LONDON, ENGLAND - SEPTEMBER 22: Harry Styles of One Direction performs on stage as part of Apple Music Festival at The Roundhouse on September 22, 2015 in London, England. (Photo by Christie Goodwin/Redferns)
LONDON, ENGLAND - SEPTEMBER 21: Harry Styles at Lou Lou's club on September 21, 2015 in London, England. (Photo by Mark Robert Milan/GC Images)
DETROIT, MI - AUGUST 29: Harry Styles of One Direction performs in support of the On The Road Again Tour at Ford Field on August 29, 2015 in Detroit, Michigan. (Photo by Scott Legato/Getty Images)
NEW YORK - AUGUST 04: (L-R) Harry Styles, Liam Payne, Niall Horan and Louis Tomlinson of One Direction perform on 'Good Morning America' on August 04, 2015 in New York City. PHOTOGRAPH BY Photo Image Press / Barcroft Media (Photo credit should read Photo Image Press / Barcroft Med via Getty Images)
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