One ruler of this region 
One ruler of this region murdered his brother at a feast to gain power as his son was being born, earning that son the nickname "Bad Feast." A king of this region received the Golden Bull of Sicily, granting this region autonomy. According to legend, the capital city of this region was founded by the woman Libuse, while the native dynasty of this region traces itself to Premysl the Ploughman. This region reached the height of its power just before the Battle of Marchfeld, where its great king Ottokar II was defeated by the Austrians. Christian of Anhalt lost a battle in this region to Count Tilly. For 10 points, name this region home to the Battle of White Mountain, the Hussite Wars, and the Defenestration of Prague. 
One ruler of this region murdered his brother at a feast to gain power as his son was being born, earning that son the nickname "Bad Feast."
: Bohemia [prompt on things to do with Czechs]