It's scary times if you're a corgi - according to spokespeople at the Kennel club, the Pembroke Welsh corgi is at risk, with only 300 corgi puppies registered this year.
The Pembroke Welsh corgi is the Queen's favourite - and as her granddaughter in law, Kate Middleton, is a famous dog lover, it is thought that she'll be devastated.
However, Kate and Will don't have a corgi of their own - their dog is a cocker spaniel puppy called Lupo.
The popular pooch has wowed the crowds at a series of polo events, but looking after Lupo is very much a family affair - after all, it was a gift from Kate's Mum Carole, who breeds cocker spaniels.
It is thought that Lupo gets on well with the Queen's corgis, who were the stars of the summer, taking part in a video broadcast during the Olympics opening ceremony.
However, royal adviser Monty Roberts has said that the Queen is not planning to breed any more corgis from Susan, the dog she was given on her 18th birthday. "I heard that she has decided not to breed the young ones any more," Monty revealed to the Daily Telegraph.
Thriving breeds include smaller dogs such as the pug and the chihuahua. Will we see the Queen and Kate attending royal functions with tiny dogs tucked into their handbags? We hope so!
It's not just about Kate these days. Check out little sister Pippa's book launch here: