In a rare, highly personal interview, the Duchess of Cornwall has spoken about her daily Wordle games with her granddaughter.

Speaking to British Vogue, Camilla shared details about being a grandmother, balancing royal duties with her marriage to the Prince of Wales and her upcoming 75th birthday.

Camilla, who will celebrate her birthday on July 17, joined the magazine’s Giles Hattersley over a cup of tea and Duchy biscuits at Clarence House, the London home she shares with Charles.

She will also be guest-editing Country Life and an ITV documentary will show her work at the magazine.

Camilla spoke to British Vogue ahead of her 75th birthday (Jamie Hawkesworth/British Vogue)

The future Queen Consort told British Vogue that she loves texting with her five grandchildren, aged between 12 and 14.

“I do Wordle every day with my granddaughter,” she said, revealing a fondness for the online five-letter word puzzle.

“She’ll text me to say, ‘I’ve done it in three’, and I say, ‘Sorry, I’ve done it in two today.’ It’s very satisfactory when it tells you how brilliant you are.

“It’s very nice getting a text.

“We learn from very young people and they learn from us, too. That’s the way it’s always been.”

The Duchess of Cornwall with her son Tom Parker-Bowles (centre) and daughter Laura Lopes (Joe Giddens/PA)

Camilla’s son Tom Parker Bowles has a daughter named Lola and son Freddy, while her daughter Laura Lopes has three children – Eliza, Gus and Louis.

The Duchess said she enjoys spoiling them occasionally by giving them “more of the things that their parents forbid them to have”.

She also disclosed that she picks one of her grandchildren up from school near to her Wiltshire home.

“The girls are beginning to get into clothes and make-up and, you know, it’s rather frightening when you see them, coming out with pierced ears and a lot of new make-up and funny-coloured hair and stuff,” she added.

Camilla said her grandchildren want her to get her ears pierced for her birthday but she will not be persuaded.

She added that there “won’t be much celebration” for her birthday, which will be spent with family and a small circle of friends.

Camilla said balancing royal work with her marriage is “not easy sometimes” but she and Charles make sure to “sit down together and have a cup of tea and discuss the day”.

She said: “You know when we go away, the nicest thing is that we actually sit and read our books in different corners of the same room.”

The July issue of British Vogue, which includes the full interview, is available from June 21.