excused them from all the damage caused to the Csák brothers, Matthew and Csák, and their familiares. After a one-year effective ceasefire, the conflict has recurred between Andrew III and Matthew Csák by the second half of 1299. Following a failed royal campaign led by Demetrius Balassa against the Csák territory, the oligarch's troops invaded the central parts of Upper Hungary. According to a later 14th-century source, Andrew and Ivánka were killed in the skirmish. References Sources 1299 deaths 13th-century Hungarian people Andrew 02 Medieval Hungarian soldiers Hungarian military personnel killed in action