The energetic Boleslaus the Cruel, the Czech …

Years: 975 - 975

The energetic Boleslaus the Cruel, the Czech Przemysl dynasty’s prince of Bohemia from 929 or 935, is notorious for the murder of his brother (Saint) Wenceslas, through which he had become prince of Bohemia.

Boleslaus may never have become a vassal of the German king, but it is known that he led a Czech force in alliance with Otto at the great victory over the Magyars at the Lech river on August 10, 955.

He had also helped Otto to crush an uprising of Slavs on the Lower Elbe in 953.

Seeing the growth of Polish strength to the north of his borders, he had accordingly arranged for his daughter Dubrawka to marry the Piast prince Mieszko I in 965.

Dying two years later, he is succeeded by his son, Boleslaus II, whose reign is most notable for founding of the diocese of Prague in 973, which has been placed within the jurisdiction of the Archbishop of Mainz.

Called ”The Pious”, Boleslaus maintains good relations with the Ottonian German kings, and in 975 supports Otto II during his civil war against Henry II, Duke of Bavaria.

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