Queen Elizabeth is in mourning this week after the last of her beloved Corgis passed away.

Named Whisper, the Corgi was 12 years-old when she passed on. This came months after Willow, the last dog descended from Elizabeth’s first pet corgi, Susan, passed away. Susan was given to the Queen in 1944 for her 18th birthday, and she has loved corgis ever since. She bred corgis until 2015, when she decided to stop at the age of 89, as she did not want to leave any behind upon her death.

Elizabeth had adopted Whisper from outside the family line from Bill Fenwick, a former gamekeeper at the Queen’s country retreat of Sandringham in Norfolk. The Queen made the decision to put Whisper down at Windsor Castle last week after the dog had been ill for quite some time.

“Whisper was a friendly chap and followed her everywhere,” said a source. “The Queen quickly became very attached to the dog. The death of any of her Corgis has always hit her hard and Whisper’s was no different.”

The entire royal family is undoubtedly in mourning right now, as they all loved the corgis dearly. When announcing his engagement to Meghan Markle last year, Prince Harry talked about how she bonded with the Queen’s corgis quickly.

“And the corgis took to you straightaway,” Harry said to Meghan. “I’ve spent the last 33 years being barked at – this one walks in, absolutely nothing.”

Losing a dog is an incredibly difficult experience, so we can only imagine what the Queen is going through right now. Please keep her in your thoughts and prayers!