Queen Elizabeth last-living corgi has passed away

Queen Elizabeth's last living corgi has died.

According to reports, the queen's 14-year-old dog, Willow, was put to sleep after a battle with cancer. After owning more than 30 corgis over the last 70 years, it marks the first time the queen has been without the breed since World War II. 

She's taking the loss "extremely hard," explained insiders.

While Buckingham Palace hasn't yet commented on Willow's death, a source explained to The Daily Mail,  "She has mourned every one of her corgis over the years, but she has been more upset about Willow’s death than any of them. 

The source explained, "It is probably because Willow was the last link to her parents and a pastime that goes back to her own childhood. It really does feel like the end of an era."

See more of the queen with her Corgis: 

34 PHOTOS
Queen and her corgis
See Gallery
Queen and her corgis
July 1936: Princess Elizabeth sitting on a garden seat with two corgi dogs at her home on 145 Piccadilly, London. (Photo by Lisa Sheridan/Studio Lisa/Getty Images)
Princess Elizabeth holding Sue, a corgi pup, in the grounds of Windsor Castle, Berkshire, 30th May 1944. (Photo by Lisa Sheridan/Hulton Archive/Getty Images)
circa 1946: Princess Elizabeth and Princess Margaret Rose (1930 - 2002) waiting at Ballater Station, near Balmoral Castle, Aberdeenshire, with two dogs. Queen Victoria's husband, Prince Albert, purchased Balmoral Castle in 1846, and the small castle which stood in the 7,000 hectare wooded estate was redeveloped in the 1850s.The granite building was designed by Aberdeen architect William Smith with suggestions from Albert himself, who decided the interior decoration should represent a Highland shooting box with tartan or thistle chintzes, and walls decorated with trophies and weapons. Queen Victoria often visited the Highlands with her family, especially after Albertfs death in 1861, and Balmoral is still a popular retreat for the present royal family. (Photo by Central Press/Getty Images)
LONDON, ENGLAND - 1957: (EDITORS NOTE: This image was released in connection with The Prince of Wales Jubilee Tribute documentary (first broadcast on BBC1 at 8pm on Friday 1st June) and can only be used in direct relation to the film (i.e. reporting on the film) until 31st December 2012.) In this undated handout photo provided by Clarence House, Prince Charles (L) and Princess Anne play in the sand with a corgi at Holkham Beach, 1957 in Holkam, England. (Photo by Buckingham Palace/Clarence House via Getty Images)
Queen Elizabeth II with her corgis at Virginia Water in Surrey, for the European Driving Championships, 12th May 1973. The Duke of Edinburgh is taking part in the sports. (Photo by George W. Hales/Fox Photos/Getty Images)
12th May, 1973 H,M, Queen Elizabeth II relaxes surrounded by her pet corgi dogs as she watches a horse competition at Home Park, Windsor (Photo by Popperfoto/Getty Images)
31st October 1972: Queen Elizabeth II sitting in her study at Balmoral Castle, Scotland, dealing with despatch boxes containing State Papers sent from Whitehall. (Photo by Fox Photos/Getty Images)
Queen Elizabeth II with her dogs at Liverpool Street Station in London, 28th December 1972. She is en route to Sandringham for a family holiday. (Photo by Peter King/Fox Photos/Getty Images)
British Royalty, pic: 29th December 1971, Members of the Royal Family leaving Liverpool Street Station for Sandringham, L-R: Prince Charles, Princess Anne, Lady Sarah Armstrong-Jones accompanied by H,M,The Queen Mother with corgi (Photo by Popperfoto/Getty Images)
Queen Elizabeth II with one of her corgis at Sandringham, 1970. (Photo by Fox Photos/Hulton Archive/Getty Images)
Britain's Queen Elizabeth II (R) meets members of the public with two corgi dogs during a visit at Sherborne in Dorest, southwest England, on May 1, 2012 during her Diamond Jubilee progress. AFP PHOTO / POOL / ARTHUR EDWARDS (Photo credit should read ARTHUR EDWARDS/AFP/GettyImages)
LONDON, ENGLAND - NOVEMBER 08: A cake depicting Queen Elizabeth II and a corgi dog made by cake and sugar artist Muchelle Wibowo is shown at the Experimental Food Society Exhibition on November 8, 2013 in London, England. A collective of food magicians, sonic food artists, cake sculptors, gastronomic tailors, culinary cabaret troupes and a dining conceptualist have gathered together for a two day exhibition featuring their unique edible creations. (Photo by Peter Macdiarmid/Getty Images)
WINNIPEG, CANADA - JULY 3: Queen Elizabeth II chats to corgi dog-owners as she leaves Government House, where she unveiled a statue of herself on July 3, 2010 in Winnipeg, Canada. The Queen and Duke of Edinburgh are on an eight day tour of Canada, starting in Halifax and finishing in Toronto, to celebrate the centenary of the Canadian Navy and to mark Canada Day on July 1st. On July 6th the royal couple will make their way to New York where the Queen will address the UN and visit Ground Zero. (Photo by John Stillwell - WPA Pool/Getty Images)
LONDON - APRIL 1: Queen Elizabeth II's corgis walk past US President Obama's car in the grounds of Buckingham Palace while he has an audience with The Queen on April 1, 2009 in London, England.(Photo by Anwar Hussein/Getty Images)
WELSHPOOL, WALES - APRIL 28: HM Queen Elizabeth II meets a corgi called Spencer as she arrives at Welshpool train station on April 28, 2010 in Welshpool, Wales. The Queen and Duke of Edinburgh are on a two day visit to North Wales. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - FEBRUARY 25: A bronze relief surrounds a new statue of Queen Elizabeth, the Queen Mother on The Mall on February 25, 2009 in London, England. The tribute stands in front of a statue of her late husband King George VI. It is just a short way from the Queen Mother's former homes Buckingham Palace and Clarence House and includes a 9.5ft statue of the Royal matriarch. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - OCTOBER 16: (NO PUBLICATION IN UK MEDIA FOR 28 DAYS) Queen Elizabeth II meets players and officials from the New Zealand Rugby League Team, the All Golds, inside the Bow Room at Buckingham Palace on October 16, 2007 in London, England. (Photo by POOL/ Tim Graham Picture Library/Getty Images)
LONDON - OCTOBER 28: Corgis who feature in the movie 'The Queen' attend the 'Fido Awards' at the National Film Theatre as part of the BFI 51st London Film Festival on October 28, 2007 in London, England. (Photo by Stuart Wilson/Getty Images)
LONDON, UNITED KINGDOM - DECEMBER 08: Joined By One Of Her Pet Corgis The Queen Poses With The England Rugby Squad At Buckingham Palace To Celebrate The Rugby World Cup Win. Front Row (l-r): Matt Dawson, Paul Grayson, Dorian West, Lawrence Dallaglio, Martin Johnson, Her Majesty, Clive Woodward, Jonny Wilkinson, Neil Back, Phil Vickery And Kyran Bracken. Back Row (l-r): Jason Robinson, Julian White, Trevor Woodman, Steve Thompson, Mike Catt, Iain Balshaw, Dan Luger, Stuart Abbott, Andy Gomarsall, Josh Lewsey And Jason Leonard. Centre Row ( L-r): Mike Tindall, Ben Cohen, Joe Worsley, Martin Corry, Ben Kay, Danny Grewcock, Will Greenwood, Lewis Moody, Richard Hill, Mark Regan And Simon Shaw. (Photo by Tim Graham Picture Library/Getty Images)
401615 07: Britains Queen Elizabeth II meets members of the Adelaide Hills Kennel Club and their Corgis in the gardens of the Government House February 28, 2002 in Adelaide Australia. Britains Queen Elizabeth II and the Duke began their visit to Australia after arriving from New Zealand. The queen will formally open the Commonwealth Heads of Government Meeting March 2 at the resort town of Coolum, north of Brisbane. (Pool Photo/Getty Images)
LONDON, UNITED KINGDOM - AUGUST 04: The Queen Mother Surrounded By Her Staff (including Lady In Waiting Angela Oswald And Butler William Tallon) Meeting Children At Clarence House In London For Her 101st Birthday. Her Corgi Came Too. (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - AUGUST 04: The Queen Mother's Corgi Outside Clarence House In London. (Photo by Tim Graham/Getty Images)
UNITED KINGDOM - SEPTEMBER 20: Princess Elizabeth, together with her pet corgi, board the Royal Train at Kings Cross. It is likely that this journey was made to Edinburgh on 28 February to 4 March 1949, and that the Duke of Edinburgh accompanied his wife. (Photo by SSPL/Getty Images)
WINDSOR - UNDATED: HRH Queen Elizabeth II carries one of her pet dogs at Windsor Great Park,England. (Photo by Anwar Hussein/Getty Images)
LONDON, UNITED KINGDOM - AUGUST 04: The Queen Mother's 95th Birthday At Her Home Clarence House.at Right Her Ladies In Waiting Lady Angela Oswald And Far Right The Queen Mother's Niece And Lady-in-waiting Margaret Rhodes. (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - AUGUST 04: Queen Mother Corgis At Clarence House. (Photo by Tim Graham/Getty Images)
The Queen Mothers Corgis Arrive Back At Heathrow Airport, After The Summer Visit To Balmoral. (Photo by Julian Parker/UK Press via Getty Images)
The Queen Mother (1900 - 2002) carrying gifts from well-wishers outside Clarence House on the occasion of her 88th birthday, in London, England, Great Britain, 4 August 1988. A corgi stands behind the Queen Mother as she waves from the entrance to Clarence House. (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - AUGUST 04: The Queen And Queen Mother With Her Corgis Outside Clarence House To Celebrate Her Birthday. (Photo by Tim Graham/Getty Images)
SANDRINGHAM; UNITED KINGDOM - UNSPECIFIED DATE: Queen Elizabeth II relaxes at Sandringham with her corgis. (Photo by Anwar Hussein/Getty Images)
ABERDEEN, UNITED KINGDOM - JANUARY 01: The Queen's Corgis And Long-haired Dachshunds Pet Dogs Arriving At Aberdeen Airport Being Led By Members Of Staff To A Waiting Land Rover Car. Each Dog Has A Collar With A Metal Name Tag And Is Microchipped In Case Of Loss.circa 1980s (Photo by Tim Graham/Getty Images)
SANDRINGHAM, UNITED KINGDOM - JANUARY 01: A Grave For Sugar, One Of The Queen's Dogs, At Sandringham House.circa 1980s (Photo by Tim Graham/Getty Images)
SANDRINGHAM, UNITED KINGDOM - JANUARY 01: Among The Corgis' Graves In The Grounds Of Sandringham In Norfolk Is The Grave Of Heather, One Of The Queen's Favourite Dogs.circa 1980s (Photo by Tim Graham/Getty Images)
SANDRINGHAM, UNITED KINGDOM - JANUARY 01: Among The Corgis' Graves At Sandringham In Norfolk Is The Grave Of Susan, The First Of The Queen's Dogs, Who Was A Great Favourite Of The Queen And Whose Headstone Message Was Personally Chosen By Her.circa 1980s (Photo by Tim Graham/Getty Images)
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Queen Elizabeth's love for the breed began with her first dog Susan, a gift to her for her 18th birthday by her father King George VI. Susan even traveled with Elizabeth and Philip on their honeymoon to Scotland in 1947, and thus began a long line of royal breeding by the queen for 14 generations.

The pups were so beloved by the family that they were included in a short movie with Daniel Craig for the 2012 Olympic Games in London. The queen also included her dogs in the palace's official portrait to mark her 90th birthday, which was shot by Annie Leibowitz.

Queen Elizabeth stopped breading the dogs in 2015 because she reportedly did not "want to leave any behind" when she passes.However, the queen still does have two other dogs -- dorgis, a mix between corgis and dachshunds. 

Related: Leaders the queen has outlasted 

48 PHOTOS
Every world leader Queen Elizabeth II has outlasted
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Every world leader Queen Elizabeth II has outlasted

United States President Dwight Eisenhower

(Photo by Keystone-France/Gamma-Keystone via Getty Images)

French President Rene Coty

(Photo by Keystone-France/Gamma-Rapho via Getty Images)

Russian Leader Georgi Malenkov

(Photo by Keystone-France/Gamma-Keystone via Getty Images)

Russian Leader Nikita Khruschchev

(Photo via Getty Images)

British Prime Minister Harold Macmillan

(Photo by Terry Disney/Central Press/Getty Images)

British Prime Minister Sir Anthony Eden

(Photo by Keystone-France/Gamma-Keystone via Getty Images)

French President General Charles de Gaulle

(Photo by Keystone-France/Gamma-Keystone via Getty Images)

United States President John F. Kennedy

(Photo via Getty Images)

British Prime Minister Sir Alec Douglas-Home

(Photo by Hulton-Deutsch Collection/CORBIS/Corbis via Getty Images)

United States President Lyndon B. Johnson

(Photo via Getty Images)

German Chancellor Ludwig Erhard

(Photo by Keystone-France/Gamma-Keystone via Getty Images)

British Prime Minister Harold Wilson

(Photo by Fox Photos/Hulton Archive/Getty Images)

German Chancellor Kurt-Georg Kiesinger

(Photo via Getty Images)

United States President Richard Nixon

(Photo via PA)

British Prime Minister Edward Heath

(Photo by Keystone/Hulton Archive/Getty Images)

French President Pompidou

(Photo by J. Cuinieres/Roger Viollet/Getty Images)

German Chancellor Willy Brandt

(Photo by Mike Lawn/Fox Photos/Getty Images)

United States President Gerald Ford

(Photo by: Photo12/UIG via Getty Images)

French President Valery Giscard d'Estaing

(Photo credit ARCHIVE/AFP/GettyImages)

German Chancellor Helmut Schmidt

(Photo by Thomas Imo/Photothek via Getty Images)

Russian Leader Leonid Ilich Brezhnev

(Photo by: Universal History Archive/UIG via Getty Images)

British Prime Minister James Callaghan

(Photo by David Ashdown/Keystone/Getty Images)

United States President Jimmy Carter

(Photo via Getty Images)

British Prime Minister Margaret Thatcher

(Photo via Getty Images)

United States President Ronald Reagan

(Photo by Anwar Hussein/Getty Images)

French President Mitterrand

(Photo via PA)

German Chancellor Helmut Kohl

(Photo by Tim Graham/Getty Images)

Russian Leader Yuri Vladimirovich Andropov

(Photo credit should read AFP/Getty Images)

Russian Leader Konstantin Chernenko

(Photo via Getty Images)

Russian Leader Gobrachev

(Photo by Peter Turnley via Getty Images)

United States President George H.W. Bush

(Photo by Tim Graham/Getty Images)

British Prime Minister John Major

(Photo by Richard Baker / In Pictures via Getty Images)

Russian Leader Boris Yeltsin

(Photo via TASS / Valentin Cheredintsev via Getty Images)

United States President Bill Clinton

(Photo credit should read GERRY PENNY/AFP/Getty Images)

French President Chirac

(Photo by Tim Graham/Getty Images)

Prime Minister Tony Blair

(Photo by Pool Photograph/Corbis/Corbis via Getty Images)

German Chancellor Gerhard Schroeder

(Photo credit JOHANNES EISELE/AFP/Getty Images)

Russian President Vladimir Putin

(Photo by Julian Herbert/Getty Images)

United States President George W. Bush

(Photo credit STEPHEN HIRD/AFP/Getty Images)

German Chancellor Angela Merkel

(Photo credit JOHN STILLWELL/AFP/Getty Images)

British Prime Minister Gordon Brown

(Photo via PA)

French President Nicolas Sarkozy 

(Photo by EMPICS Entertainment/PA)

Russian Leader Dmitry Medvedev

(Photo by Anton Novoderezhkin\TASS via Getty Images)

United States President Barack Obama

(Photo by Lewis Whyld - WPA Pool/Getty Images)

Prime Minister David Cameron

(Photo by John Stillwell/WPA Pool/Getty Images)

French President Francois Hollande

(Photo by Pascal Le Segretain/Getty Images)

British Prime Minister Theresa May

(Photo by Mark Cuthbert/UK Press via Getty Images)

United States President Donald Trump

(Photo by Molly Riley/Pool via Bloomberg/Getty Images)

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