Here's one thing you probably didn't know about Prince Charles, just how particular he is when it comes to food.
The 70-year-old ensures he takes a hamper of his favourite foods whenever he visits the Queen at Buckingham Palace or when he is on a royal tour, according to former royal chef Darren McGrady.
Appearing on the Channel 5 documentary Secrets of the Royal Kitchen, the former royal chef said: "Whenever the Prince of Wales came to stay with the Queen, he would always arrive with a hamper of his own produce.
"In the kitchen, we'd have jars of bottled plums from the Highgrove garden."
Mr McGrady said the Prince of Wales ensures to stock the royal pantry with "his own produce" to have chefs cater to his needs and should adhere to strict rules on what to serve to him.
He continued: "The instruction was to put two plums and a little juice into the bowl and send it into him for breakfast.
"I'd send in two plums and he would take one so it would come back out after breakfast and I'd put the other plum back into the jar and save it.
"One morning I thought, 'ok, he only eats one for breakfast,' so I only put one plum into the bowl and sent it out into the dining room.
"The attending [waiter] came through and said, 'can His Royal Highness have two please?' So I had to keep sending two in every morning."
Another former chef revealed the Prince of Wales "is a bit fussy about" his royal hamper, which he ensures comes with him on holidays and tours.
While many royals have a traditional full-English breakfast at Balmoral in Scotland Charles was different, Graham Newbould said: "Prince Charles has a healthier option. He'd have homemade bread, a bowl of fresh fruit, fresh fruit juices.
"Wherever the Prince goes in the world, the breakfast box goes with him.
"He has six different types of honey, some special mueslis, his dried fruit and anything that's a bit special that he is a bit fussy about."
The Queen is also thought to include a lot of fresh fruit to accompany her cereals and cup of Earl Gray or Darjeeling tea, with Her Majesty's favourite cereal being Special K, which she asks kitchen staff to store in a Tupperware box.
Prince Philip is said to eat a breakfast featuring two types of marmalade - light and dark - as well as a carton of yogurt.