This dynasty included a man who destroyed the Slavnikovci, a rival family to this dynasty, and briefly supported Henry the Wrangler against Otto II; that king was Boleslav the Pious.
The greatest member of this dynasty was killed at the Battle of Durnkrut while marching on Vienna to regain his possession. One member of this dynasty was nicknamed "the Restorer" for his military campaigns winning back land that had been captured by a neighboring country, though he was later forced to give up most of those lands by Holy Roman Emperor Henry III. Another member of this dynasty was stripped of most of his lands at the Diet of Regensburg for refusing to recognize Rudolf of Hapsburg's election as king of Germany. This dynasty included a man who destroyed the Slavnikovci, a rival family to this dynasty, and briefly supported Henry the Wrangler against Otto II; that king was Boleslav the Pious. In addition to Bretislav I and Ottokar II, this dynasty included a Christianizer who was murdered by his brother Boleslav I, Wenceslas. For 10 points, identify this dynasty the ruling house of Bohemia from the 9th century until 1306.
The greatest member of this dynasty was killed at the Battle of Durnkrut while marching on Vienna to regain his possession.
Premyslid dynasty or house