The Queen is said to have been left heartbroken after her last remaining corgi, Willow, passed away on Sunday.

The dog, who was almost 15, was reportedly put to sleep at Windsor Castle after suffering a cancer-related illness.

According to the Daily Mail, the Queen did not want Willow, who was a gift to the then-Princess Elizabeth on her 18th birthday, to suffer any further.

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A source explained, “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.

“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.”

Her Majesty is said to have still been feeding and exercising Willow until the weekend when her condition worsened.

Said the Daily Mail insider: “She does not like seeing her dogs suffer and she knows that sometimes putting a dog down is the kindest course of action – although that doesn’t make her loss any less.”

Willow is thought to have been buried in the castle grounds.

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The Queen is now left with two dorgis (the crossbreed the Queen engineered when one of her corgis mated with a dachshund that belonged to her sister, Princess Margaret) named Vulcan and Candy.

A courtier explained, “Willow represents a significant thread running through the Queen’s life from her teenage years to her 90s.

“For many, many years she bred and raised corgis, and to think that the last one has now gone is something of a milestone.”

Willow and the Queen’s late corgi Holly, who died at Balmoral aged 13, previously appeared in a London Olympics James Bond sketch with Daniel Craig back in 2012.

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