Complete the following sentence: In 1416 he participated in a tournament at Perpignan in which he defeated the well-known knight John II of Aragon and Navarre. •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ •••••••••••••••••••••••••••
Hussite Wars on the side of King Sigismund. During Sigismund's defeat at Kutná Hora (21 December 1421), Zawisza was taken prisoner by the Hussites and subsequently released in return for a high ransom.