http://genealogy.euweb.cz/hung/zapolya.html#I

Family Zapolya (Szapolyai)

The first certain ancestor was János, fl 1437, who had issue:

• A1. "Vajdafi" László, +before 1459; m.Katalin N (fl 1463)
  • B1. Miklós, Bp of Transylvania, +1468
  • B2. Imre, Gf von Szepes 1462, Ban of Croatia and Dalmatia, Regent of Bosnia, Palatine of Hungary, Gf of Szepes 1462, +12.9.1487; m.Orsolya Bebek de Pelsőcz
  • B3. István, Gf von Szepes 1462, Governor of Austria, Palatine of Hungary, Duke of Transylvania 1511, Lord of Trenczin, +Pápa 23.12.1499; 1m: Katalin N; 2m: N, dau of Simon Drugeth de Homonna; 3m: 11.8.1483 Jadwiga of Teschen (*ca 1469 +6.4.1521)
    • ...
  • B4. Orsolya; m.Imre Derencseni (+k.a.Udbina 11.9.1493), Bán of Croatia, Dalmatia and Slavonia