Fergus, along with a corgi named Muick, were given to the queen by her son Prince Andrew in an effort to lift her spirits after Philip was hospitalized in February.
A source told the Sun: “Fergus had a problem with his heart at birth, but lasted much longer than they thought.
“Fergus was a special little puppy who saw Her Majesty through a difficult time of loss and grief. He was so affectionate and gave much joy. Muick, the other puppy, is thriving.”
The day before Prince Philip’s funeral, the Queen drove her two new puppies from Windsor Castle towards Frogmore Gardens for a walk.
The Queen named the dorgi – a Dachshund and a Welsh Corgi mix – Fergus, after her maternal uncle Fergus Bowes-Lyon, who ᴅɪᴇd in France during World Wᴀʀ I.
She named her second dog, a corgi, Muick – pronounced Mick – after Loch Muick, a lake on the Balmoral Estate in Scotland.
The Queen is said to be “absolutely ᴅᴇᴠᴀsᴛᴀᴛᴇᴅ” with the dog’s ᴅᴇᴀᴛʜ.
The puppies were the first corgis Her Majesty owned that are not direct descendants of her very first corgi Susan – which she was given in 1944 by her parents for her 18th birthday.
The Queen has always been synonymous with pets, particularly her Corgis, and has owned more than 30 during her reign. She currently has an older dorgi, Candy, and is said to be deeply saddened by Fergus’s ᴅᴇᴀᴛʜ.
In 2018, her corgi Willow, who was the 14th generation descended from Susan, was put down after sᴜғғᴇʀing from ᴄᴀɴᴄᴇʀ.