Prince Takahito Mikasa

Japanese royal, member of the Imperial House of Japan, & scholar born in 1915.
Prince Philip Prospero

Spanish heir presumptive to the throne of Spain born in 1657.
Ivan the Terrible

Grand Prince of Moscow from 1533 to 1547 and the first Tsar of Russia from 1547 to 1584.
William the Silent

Dutch prince & leader of the Dutch Revolt resulting in the independence of the United Provinces in 1581.
Prince of Talleyrand

French politician, clergyman, & diplomat, born in 1754, & known for his crafty & cynical diplomacy.
Felix Yusupov

Russian aristocrat, prince, & count known for participating in the assassination of Grigori Rasputin.