London, Nov. 30 -- : Kate Middleton is undeniably one of the most fashionable royals in the British Royal family.

While most of us would struggle to pack for an overseas trip without the added burden of international diplomacy, the Princess of Wales has an additional issue when she visits Boston this week: what to dress in the event of an unexpected death.

According to Page Six, the royals are always advised to pack a black ensemble in case someone passes away during their trip abroad.

Page Six is a US-based entertainment media house.

"Members of the British royal family are required to travel with a black ensemble in the case of the monarch or another senior royal passing while they are travelling," royal history expert Jessica Stor...