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Konrad I of Masovia

Type Figure Region Masovia Time 1187–1247 Also known as Konrad I

Duke of Masovia (1194/1199–1247), a member of the Piast dynasty. In the 1230s he ruled Masovia and Kuyavia amid the fragmentation of the Polish princ…

Timeline

  1. 1187–1229Płock · PłockSon of Casimir the Just; ruled Masovia from 1194/1199. Between 1210 and the 1220s he contested Kraków and Greater Poland influence with his brother Leszek the White and other Polish dukes, and around 1229 maintained a balance of power among the principalities.
  2. 1231–1240Czersk · CzerskConsolidated control over Masovia and Kuyavia between 1231 and 1240; in 1226 he had already brought the Teutonic Knights into the Chełmno Land to help defend against the Prussians. During this period he maintained competitive and allied relations with Henry II of Silesia (after 1238) and Władysław Odonic of Greater Poland; after Odonic's death in 1239 the eastern Polish landscape shifted again.
  3. 1241–1247Płock · PłockThe Mongol invasion of 1241 reached eastern Poland, and Konrad organized the defense. After his death in 1247 his lands were divided among his sons, and the Masovian line of the Piasts continued to rule until 1526. His 1226 decision to invite the Teutonic Knights is regarded by later generations as a controversial act in Polish historiography.

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