Christoph Kuyler was born in 1639, in Munich, Bavaria. He became Immortal in 1681 while attempting to kidnap the Prince Maximilian II Emanuel, Elector of Bavaria's daughter.

Over the years, Kuyler became a skilled assassin, dressing up as a clown, acrobat, or a mime. He used these acts to entertain his targets, thus catching them off guard in order to then kill them. In the near 300 years of his life, he killed 2760 mortals.

His preferred weapon of choice when fighting other immortals is a Charles V short sword.