Mad Princes of Renaissance Germany - H. C. Erik Midelfort - Google Books

http://books.google.de/books?id=dDu1OHSZ1_8C&pg=PA148

Early in 1582 his princely grace Duke Wilhelm the Younger of Braunschweig-Luneburg took to roaming the streets at night, shooting off pistols at imaginary enemies and shouting into the dark. His advisers ordered him confined, but in August of that year he…