Battle of Nicopolis
Charles was also a major participant in some late Crusading movements. He was at Tunis in 1391. He took part in the so-called Last Crusade which culminated in the disastrous Battle of Nicopolis in 1396. There he accompanied John the Fearless, the count of Nevers and son of his friend Philip. In 1399, he assisted the Teutonic Knights in Livonia.