Camilla Duchess of Cornwall, 70, often joins her husband Prince Charles, 69, on royal visits abroad.
The heir to the throne recently came under fire for his extremely expensive travel bill after spending a whopping £1 million when flying and travelling by royal train last year.
There are a number of rules that many members of the royal family must abide by when on tour or visiting a foreign country.
What needs to be packed and what can and can’t be eaten is often something they must obey.
Camila recently confirmed a rather odd travel rule when it comes to eating at events and state banquets.
Speaking to MasterChef Australia after making an appearance last week, she confirmed that royal family members do not eat garlic at a royal event.
She told Gary Mehigan, a judge on the show: “I hate to say this, but garlic. Garlic is a no-no.”
The judge asked why this was, saying: “Because you’re talking, chatting?”
Camilla confirmed: “Yes, exactly. So you always have to lay off the garlic.”
It is well-known that the Queen hates garlic, along with onions, so royal chefs often leave them out when cooking meals at the palace.
The newest royal family member may struggle when avoiding garlic, with Meghan Markle declaring her love for the food.
In the past, when speaking to Today, she confirmed a favourite dish of hers to be Filipino style chicken adobo.
When explaining the recipe, she said: “It’s so easy—combine garlic, soy, vinegar, maybe some lemon and let the chicken swim in that sauce until it falls off the bone in a Crock Pot.”
Of course, the royal will still be able to enjoy eating garlic in private and when not dining with other royal family members.
It isn’t the first royal rule that Meghan will have to now obey when travelling on behalf of the family.
The 36-year-old will always have to pack a black outfit when travelling.
In the case of a royal death, she will have to be ready to dress in mourning upon her return to the UK.
She will also not be able to enjoy shellfish when working, due to the high risk of food poisoning.
Meghan and Harry are known for often holding hands at events, something Kate and William are rarely seen doing.
However, at a recent event with the Queen, the couple refrained from doing so and may not be as publicly affectionate during their first royal tour to Australia later this year.