Louis Ferdinand, Prince of Prussia was a member of the princely House of Hohenzollern, which occupied the Prussian and German thrones until the abolition of those monarchies in 1918. He was also noteworthy as a businessman and patron of the arts.

Wilhelm, German Crown Prince, Crown Prince of Prussia was the eldest child of the last Kaiser, Wilhelm II, German Emperor, and his consort Augusta Victoria of Schleswig-Holstein, and thus a great-grandson of Queen Victoria, and distant cousin to many British royals, such as Queen Elizabeth II. As Emperor Wilhelm's heir, he was the last Crown Prince of the German Empire and the Kingdom of Prussia, until the abolition of the monarchy.