Unsigned early book about Wilhelm von Grumbach: Copeien derer Schrifften so zwischen dem Churfürsten und Hertzog Johansfriedrichen dem Mittlern…und Wilhelmen von Grumbachs. Published in Germany in 1566. Bound in vellum wrappers, 6.25 x 7.5. A scarce record of the attempt of Grumbach, a German adventurer, to overthrow the government. After plundering Wuerzburg in 1563, he was seized and executed in 1566. In good to very good condition, with soiling and rippling to vellum wrappers, some creasing to pages, and occasional marginal notations.