The Princess of Wales's baby nephew, Inigo, has an adorable new habit according to his dad, James Middleton, and it's got a sweet link to his royal auntie.

Princess Kate's younger brother appeared on Love Your Weekend with Alan Titchmarsh and revealed that his one-year-old son is a big fan of tennis balls.

James, 37, said: "He loves tennis balls because there are always some tennis balls around.

"He likes to throw the balls for the dogs now so he sits there and chucks the balls in fits of giggles."

Kate's brother added: "It's really wonderful because the dogs have really welcomed him."

Princess Kate is known to be an avid tennis fan and has been patron of the All England Lawn Tennis and Croquet Club since 2016.

James shares Inigo with his wife, Alizee Thevenet, whom he married in 2021.

The couple started dating in 2018 and got engaged the year after before they tied the knot.

Alizee, 34, is a financial analyst who has worked in the London finance industry for years after graduating with a Master's degree in Investment and Finance from Queen Mary University in the UK capital.

Elsewhere in the interview, James revealed that his son can now walk.

He said: "He's been on all fours, and now he's walking.

"He gets stability by holding on to the back of a dog, and basically they start walking and he doesn't really have a choice, so he starts walking."