But the couple and their three children are understood to have been given a new dog by Kate’s brother, James.
It is believed Prince George, seven, and Princess Charlotte, five, had the pick of the litter before deciding on the new puppy.
Shortly before Lupo died, James gave the family the eight-month-old black puppy as a gift.
Lupo’s sister bred a litter of six puppies last summer while James and his fiancee Alizee Thevenet stayed with his pattern in Berkshire.
The couple shared a photo of their adorable litter on Instagram.
The new puppy, who is Lupo’s nephew, has settled in at their home in Anmer Hall, where the Cambridge’s have been living during the pandemic.
James has been breeding puppies since 2011 and gave Lupo to Kate when Prince William was deployed to the Falklands.
And it is believed the family are “besotted” with the new addition to their family.
A friend told the Mail on Sunday: “The new puppy is adorable and the whole family are besotted.
“They were devastated when Lupo passed away, as any dog owner will understand, but got the new puppy have died.
“It was hoped that a younger dog would give Lupo some company and give him a little more life and energy.”
Lupo was a beloved pet and was responsible for picking Prince George’s name in a game organised by the royals.
The cocker spaniel also appeared in the first official family photo after Prince George was born.
In a rare personal post on Instagram, Will and Kate announced the passing of Lupo last year.
They wrote: “Very sadly last weekend our dear dog, Lupo, passed away.
“He has been at the heart of our family for the past nine years and we will miss him so much. – W & C”
The new puppy’s name is not known, but it is the same breed as the late Lupo.
James once described dogs as live-saving in terms of the companionship they offer.
Speaking about his own mental health, James Middleton previously wrote on Instagram: “Dogs don’t just change lives, they save them.
“I had an honest conversation with Sean Fletcher for BBC’s Sunday Live program with Pets As Therapy talking about how dogs can change lives in so many different ways.”
He added: “I truly believe animals are medicine and they really are incredible for our own wellbeing.”
Source: EXPRESS CO UK