The execution of Jan Hus (Church reformer, a leading figure of the Czech Reformation) triggered the Hussite Wars and the subsequent religious split.
In 1471, the Jagiellonian dynasty ascended the Czech throne and ruled for half a century, handing over the throne to the Habsburgs. After the death of Emperor Rudolf II Habsburg, religious and political tensions increased, resulting in the second defenestration of Prague, which initiated the Thirty Years' War. Germanization and re-Catholicization of the Czech lands took place.