No Traveling Without Funeral Clothes
After Princess Elizabeth was visiting Kenya with Prince Philip, she was caught off guard when her father, King George VI, died suddenly. She had to travel sans mourning clothes, and since then, all royals must carry funeral clothes with them on all trips.
“This ensures that when they return to the U.K. they are seen to be in a respectful mood that correlates with the presumable sombre mindset of the nation during that period,” The Independent reports.