Judy Murray has collected her OBE for services to tennis, women in sport and charity at Buckingham Palace.
The former Great Britain Fed Cup coach was the third member of her family to be honoured after sons Andy and Jamie were given a knighthood and OBE respectively.
She said she warned the Duke and Duchess of Cambridge off any plan to make Prince George “the next Andy Murray” during the ceremony.
Last month Kate revealed during a visit to the Lawn Tennis Association’s headquarters that she was teaching the game to the four-year-old prince but he “only wants to whack the ball”.
Ms Murray, speaking after Friday’s ceremony, said: “He (William) was saying about Prince George, Catherine trying to teach Prince George how to play tennis and how I think she had said last week that she wants him to be the next Andy Murray.
“I’m sure she was joking. I was trying to put them off that – I said it’s a very difficult journey.”
Scottish tennis coach Murray has had a successful career, notably training her two Wimbledon-winning sons, setting them on the road to stardom.
She recently became a grandmother again after Andy’s wife Kim Sears gave birth to their second daughter.
The couple, who married in 2015, already have a young daughter Sophia.