Person

Konrad I of Masovia

c. 1187–1247 · 13th century · Also known as Konrad of Masovia

Konrad I of Masovia was a Polish duke of the Piast dynasty, ruling Masovia and Kuyavia and briefly holding Kraków. Unable to stop raids by the pagan Prussians, he invited the Teutonic Order to Poland and granted it the Chełmno land around 1226. The Order then conquered Prussia and built a powerful state that later became a long-standing rival of Poland.

Konrad I of Masovia
Image: Friedrich A. Vossberg · Public domain · Wikimedia Commons

Mentioned in 1 profile

State of the Teutonic OrderFoundation

Mentioned in 6 state histories

PomesaniansDuchy of MasoviaState of the Teutonic OrderDuchy of LeczycaDuchy of KuyaviaBishopric of Culm

See also

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

Last reviewed October 2026Random entry ↻