Konstanty Wiśniowiecki

Prince Konstanty Wiśniowiecki (1564–1641) was a Ruthenian nobleman of Kingdom of Poland, voivode of Belz since 1636, of Ruthenia since 1638 and starost of Czerkasy and Kamieniec was a wealthy, powerful and influential magnate, experienced in both politics and warfare.

Marriage and issue
He was married four times:
 * circa 1583 Anna Zahorowska Korczak; had issue
 * son Janusz Wiśniowiecki (1598–1636), daughters Helena Wiśniowiecka (married Stanisław Warszycki) and Marianna Wiśniowiecka (1600–1624; married Jakub Sobieski)
 * 1603 Urszula Mniszech, sister of Maryna Mniszech; had issue
 * sons Jerzy Wiśniowiecki (died 1641) and Aleksander Wiśniowiecki (died 1638/39), daughter Teofila Wiśniowiecka
 * 1626/28 Katarzyna Korniaktowna (died circa 1635); no issue – daughter of Konstanty Korniakt h. Krucyni
 * Krystyna Strusiowna h. Korczak (died after 1647); no issue

Wiśniowiecki outlived all of his three sons; after his death, his estate was inherited by Prince Jeremi Wiśniowiecki.