In 1435, Nicholas V married Margaret Clemm of Ellguth. They had three children: •
John IV "the Elder" (d. 1483). •
Wenceslaus III (d. 1479). •
Barbara (d. 1510), married in 1475 to Duke
Jan IV of Oświęcim (d. 1495/1497). In 1451 in Kraków, Nicholas V married his second wife. She was
Barbara Rockemberg (d. 1464) from a patrician family in Kraków. They had two children: • Nicholas (died in infancy). • Machna (d. 1508), married in 1482 to Duke
Casimir II of Zator. Since her stepsons John IV and Wenceslaus II were minors when Nicholas V died in 1452, Barbara was
regent of Racibórz, Krnov, Bruntál and Rybnik from 1452 until 1462. She was also Lady of
Pless, which was probably her
jointure. == Notes ==