Person

Boleslaus I of Bohemia

d. 967 or 972 · 10th century · Also known as Boleslaus the Cruel, Boleslav I

Boleslaus I, called the Cruel, was Duke of Bohemia from 935, after he murdered his brother Wenceslas. He resisted Otto I for fourteen years before accepting his overlordship in 950, and his forces helped defeat the Magyars at the Battle of Lechfeld in 955. He extended Přemyslid power over Moravia, Silesia and the region of Kraków.

Boleslaus I of Bohemia
Image: Känsterle (Overleg) · CC BY-SA 3.0 · Wikimedia Commons

Mentioned in 1 state history

Duchy of Bohemia

See also

Cite this entry
APA
The Epoch Institute. (2026). Boleslaus I of Bohemia. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/boleslaus-i-of-bohemia
MLA
“Boleslaus I of Bohemia.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/boleslaus-i-of-bohemia. Accessed .
Chicago
The Epoch Institute. “Boleslaus I of Bohemia.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/boleslaus-i-of-bohemia.
Harvard
The Epoch Institute (2026) ‘Boleslaus I of Bohemia’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/boleslaus-i-of-bohemia (Accessed: ).

Last reviewed October 2026Random entry ↻