Konrad III Rudy

Konrad III the Red , was a Polish prince member of the House of Piast in the Masovian branch. He was a Duke of Czersk, Liw, Warsaw, Nur, oma, Ciechanw, Ran, Zakroczym and Wyszogrd during 14541471 jointly with his brothers , Duke of Pock, Wizna, Posk and Zawkrze during 14621471, and after the division of the paternal domains in 1471, sole ruler over Czersk and Liw, over Wyszogrd during 14741489 and again in 1495, over Zakroczym since 1484, over Nur since 1488 and over Warsaw since 1489.

BetweenJune 1468 and 1470, Konrad III married firstly with Magdalena , a daughter of Stanisaw Stawrot, a citizen of Krakw, perhaps identical to Stanisaw of Stawiszyn, a Brewmaster mentioned in the mid 15th century chronicles. She was also probably married previously with certain Simon, also a brewer in Krakw who signed some town charters around 1476 if this is true, she certainly divorce him in order to marry the Duke, and this also supposed that she could be his mistress before their wedding. The previous thoughts that connected the marriage with the purchase of Kamienica in Krakw, where refuted by recent historiography. Because for the loworigins of the bride, the marriage was morganatic and any children born from them had rights of inheritance. She died after a few years of childless union according to Jan Dugosz, Konrad III gave her a princely funeral, despite her lowborn status. She was probably buried in one of the most important churches of Krakw or Masovia.

Source: Wikipedia