It was relatively common in the middle ages for Kings, royals, and various other titled men to die in combat, and they were at least usually expected to fight personally. Despite the dangers of medieval combat and the expectations of nobility, however, many at the highest levels of aristocracy died in less than noble mundane accidents, and even in embarrassing circumstances.
The Russian Revolutions in 1917 ended Russian involvement in WWI, but precipitated a civil war that dragged in outside powers and lasted for years as the Bolshevik forces sought to enforce control over all the former territories of the Russian Empire. The chaos allowed all manner of smaller movements and independent warlords to flourish for a time, and among them was the brutal so called “Bloody” or “Mad” Baron Roman von Ungern-Sternberg.
USS Enterprise was the world’s first nuclear powered aircraft carrier, and would see an exceptional five decades of active service throughout an astounding number of operations, including being the first nuclear powered ship to engage in combat. However, Enterprise’s deadliest day was not off of Vietnam, but off of Hawaii.