When it comes to 14th-century French nobility, there are few characters more illustrious (and more terrifying) than Gilles de Rais. Rais began his life as a darling of the French military, and he even fought alongside Joan of Arc during the Hundred Years' War.
However, later in his life, it was revealed that Rais was always up to no good.
It was after he retired from the military, however, that his life took a turn for the bizarre.
During his life, Rais had become quite wealthy. After he retired, he spent the vast majority of his fortune on a large-scale theater production of his own design. The play was called Le Mistère du Siège d'Orléans. The script included more than 20,000 lines of verse, 140 major roles, and 500 extras. The entire thing nearly bankrupted him, and it was only performed once.