John Sigismund Zápolya or Szapolyai was King of Hungary as John II from 1540 to 1551 and from 1556 to 1570, and the first Prince of Transylvania, from 1570 to his death. He was the only son of John I, King of Hungary, and Isabella of Poland. Wikipedia
Born: July 7, 1540, Buda
Died: March 14, 1571 (age 30 years), Alba Iulia, Romania
Great-grandparents: Casimir IV Jagiellon, Elizabeth of Austria, Gian Galeazzo Sforza, and more
Grandparents: Sigismund I the Old, Stephen Zápolya, Bona Sforza, and more
Parents: John Zápolya and Isabella Jagiellon
Place of burial: "Saint Michael" Cathedral, Alba Iulia, Romania
Cousins