When their beloved cocker spaniel, Lupo, died last month, the Duke and Duchess of Cambridge were heartbroken. But their grief was tempered by the arrival of a new puppy, with whom the whole family is said to be “besotted.” The new cocker spaniel, whose name has not yet been revealed, was given to the family by the Duchess’s brother, James Middleton, before Lupo died. And ensuring it remains a family affair, the puppy is Lupo’s niece. Mr Middleton, 33, bred his first litter of puppies from his dog Ella in 2011. He kept one, called Luna, but gave her brother Lupo to the Duchess in early 2012 after the Duke deployed for six weeks to the Falkland Islands while serving as an RAF search and rescue pilot. Last summer, Mr Middleton, who at the time was staying with his parents at their Berkshire home, bred another litter of six puppies with Luna as their mother. The Cambridges, along with their children Prince George, seven, Princess Charlotte, five, and Prince Louis, two, are said to have had the pick of the litter.