 Urged by Pope Paul II, Matthias led a crusade against the Czech Hussites and occupied great parts of Moravia and Silesia in 1468. The Catholic Estates of Moravia proclaimed him King of Bohemia on 3 May 1469. Matthias' reign was also recognized in Lusatia and Silesia, but Bohemia proper remained under the rule of his opponents, Kings George of Poděbrady (till 1471) and Vladislaus II Jagiellon. Through a series of wars, Matthias occupied Lower Austria and Styria between 1480 and 1487. He officially adopted the title of Duke of Austria in 1487.
