Heinrich 'Hentze' Pflug

Killed at the Battle of Aussig in Bohemia, along with some 500 Saxon and Thuringian aristocrats who were sent by the Pope to fight the Hussites who posed a threat to Catholicism. They were massacred. The Hussites won in the end, after years of wars, with Protestantism taking over as the main religion in Saxony, Thuringia and Bohemia.

http://www.geni.com/projects/The-Fallen-of-the-Battle-of-Aussig-%C3%9Ast%C3%AD-nad-Labem-Bohemia-1426/27631