After Jan Žižka's death on 11 October 1424, Jan Hvězda of Vícemilice and Bohuslav of Švamberk took the lead of the Taborite forces. The combined forces of Taborites, Sirotci and Praguers decisively defeated mercenaries from Saxony, Thuringia, Lusatia and Meissen in the Battle of Usti on 16 June 1426. Under the leadership of Prokop Holý, the combined troops of the Taborites and Sirotci defeated Albrecht II in the Battle of the Light. The Taborites in conjunction with the Sirotci and the Prague Union turned to flee from the Third and Fourth Crusades against the Hussites, in the battles of the Tachov and the Domažlice. In addition, led by Prokop Holý, they set out on campaigns abroad (German parts of the Holy Roman Empire, Austria, Upper and Lower Lusatia, Silesia, and Upper Hungary). In the spring of 1433, the council of Tábor at the Council of Basel was represented by Nicholas of Pelhřimov, who advocated the article on punishment of deadly sins. In the summer of 1433, the Taborites joined the siege of Catholic Pilsen. The city, however, defended well and Hussite troops were forced to abandon the ineffective siege. Finally, after twenty years, the power of the Taborites was broken with the Battle of Lipany on 30 May 1434, during which 13,000 of the 18,000-strong army of Taborites and Sirotci, led by Prokop Holý, were overwhelmingly defeated by the united Catholic forces. Under the weight of this defeat, the Sirotci's union completely disappeared. Many of the leading Taborite commanders fell in battle, including the leading priest Prokop Holý.