Konrad IV the Elder was Duke of Oels, Koźle, half of Bytom and half of Ścinawa from 1412 to 1416, sharing rule with his brothers. After 1416, he became the sole ruler of Kąty, Bierutów, Prudnik and Sy
Konrad III the Old
…By 1380 he married with Judith (also named Jutta or Guta) (d. 26 June 1416), whose origins are unknown. They had seven children: Konrad IV the Elder (ca. 1384 – 9 August 1447). Konrad V Kantner (ca. 1385 – 10 September 1439…