Royal Family must obey these eight rules abroad on tours - but one is often broken

will always accompany royal tours which have long been a central feature.

Royal tours are an integral part of the monarchy so as to assure relationships between the UK and other countries are met.

During reign, the monarch embarked on a staggering 285 official overseas tours during her 70-year reign.

Since acceding to the throne, has been responsible for official visits by the monarchy as seen in his current tour with his wife, Camilla.

During these royal tours, eight rules must be adhered to with one rule often being broken.

While any monarch is on tour rule number one must always be met which means always bringing a black outfit.

The black outfit rule was implemented when Queen Elizabeth was on a royal tour in Kenya when her father, King George VI, unexpectedly passed away and she didn't have a black outfit upon arrival which is expected when there is a death and meant she had to wait on the plane until one was brought to her.

Rule number two also involves clothing with having to ensure they have a new outfit to change into when arriving in the new country.

When flying, the must try to always travel with the UK's flagship airline, .

There is often flexibility regarding this rule as seen when William and Kate flew to Pakistan and used a RAF jet instead due to security reasons.

Rule number four involves the team a royal must bring on tour with them to ensure a smooth journey and includes royal aides to help with all the necessary details that are required for such stately affairs.

As for the length of royal tours, rule number six states that no tour should last longer than two weeks

However, Queen Elizabeth had the longest tour to date which lasted from November 1953 to May 1954 and saw her embark on several countries including the West Indies, Asia and Africa.

Rule number seven is the rule most often broken by royals and involves travelling with heirs.

The rule states it should not be done but it is often the most commonly broken rule as seen when and joined their parents, and on their royal tour of Poland and Germany in 2017.

The final rule monarchs must always adhere to is certainly the most bizarre.

It states that the royal family must bring their own blood as travelling with a doctor is not always feasible so therefore they're expected to bring along blood bags which match the monarch's blood type.

This is in case of an emergency particularly if visiting a host country who may not have a large supply of blood

King Charles has brought his own blood supply to Australia alongside his doctor.