Princess Margaret, Queen Mother and Queen Elizabeth II
Princess Margaret, Queen Mother, Queen Elizabeth II, Prince Harry, Prince Charles and other members of the royal family watch an honour guard on Aug. 4, 1997 in London. Getty Images/Adrian Dennis

Queen Elizabeth shared an impenetrable bond with her younger sister, Princess Margaret, and their mom, the Queen Mother.

As such, when the two women who were closest to Her Majesty’s heart died in the same year, Her Majesty suffered a heartbreaking blow.

Three days after the monarch celebrated the 50th anniversary of her ascension to the throne, Princess Margaret passed away. The latter suffered from a stroke that also resulted in cardiac problems.

Prior to Princess Margaret’s demise, she was already confined to a wheelchair. She was also oftentimes photographed wearing dark sunglasses after partially losing her vision.

And shortly after Princess Margaret passed away, the Queen also had to say goodbye to the Queen Mother. Her Majesty was reportedly at her mom’s bedside when she passed away on March 30, 2002. She was 101.

Buckingham Palace released a statement announcing the Queen Mother’s death at that time.

“The Queen, with the greatest sadness, has asked for the following announcement to be made immediately: her beloved mother, Queen Elizabeth, died peacefully in her sleep this afternoon at Royal Lodge, Windsor. Members of the royal family have been informed,” the statement read.

In related news, the Queen also made headlines this week after it was revealed that her time in Balmoral won’t go on unless she’s able to do one simple task.

While speaking with Yahoo’s “The Royal Box,” royal expert Roya Nikkah revealed that the Queen works on her daily red boxes to keep her updated on government and parliamentary business even while she’s on vacation.

“I think the Queen unless she’s doing her red boxes every single day, doesn’t feel as if life goes on. For her, although it’s her great three-month-long holiday, work goes on as usual… She still does her red boxes every single day at Balmoral, she meets prime ministers, she meets American presidents or incoming heads of state who are over up there sometimes,” she said.