King Charles is celebrating his 77th birthday with a visit to Wales

The day will also be marked by gun salutes which will be fired at Green Park in London by The King's Troop Royal Horse Artillery and at the Tower of London by the Honourable Artillery Company while the bells of Westminster Abbey will also be rung in celebration of the King's birthday.

His official birthday celebrations will take place in June when the Trooping the Colour parade is held in London.

It comes after it was revealed King Charles wrote to Ozzy Osbourne's family after his death.

The Black Sabbath rocker passed away in July at the age of 76 and his wife Sharon took comfort in the kind message she and the Paranoid hitmaker's children received from the "amazing" and caring monarch.

Speaking on the Osbournes podcast, the couple's son Jack Osbourne said: "We got a lovely letter from the king."

Sharon added: "Our King is an amazing person. He is an amazing person, not just because he wrote to us when Ozzy passed, but if he did it for us, know he does it for many, many, many people.

"Here's a man that does know what's going on in the street with people. Not just politics, not just you know, here's a man that cares about the environment, animals," she added.

"He cares about many, many, many things."

The 73-year-old matriarch revealed Charles had previously got in touch with the family in 2003, when he was still Prince of Wales, after Ozzy was seriously injured in a quad bike accident.

She said: "He's got a good heart. He didn't have to do certain things that he's done for Ozzy.

"He is a good, caring man with a good heart. "We respect him, we respect his family.

"And he, again, took the time out of his day to write us, have it hand-delivered to us, a note from the King for Ozzy's passing with his condolences, and that says so much."