This is my latest article, I've worked a lot on it. I hope you will like it...
Szapolyai János (German: Johann Zápolya) was born in 1487 in Szepesváralja, and died in Szászsebes, 17/21 July 1540. His father, Szapolyai István, was a nobleman and Palatine of Hungary between 1492 and 1499. János’ mother was Princess Hedvig of Teschen, daughter of Prince Přemislav II of Teschen and Princess Anna of Mazovia, and grandson of Prince Boleslav IV of Mazovia. His sister was Queen Barbara of Poland. Also, he had a brother György who was commander of the Hungarian army in 1526 and was killed in the Battle of Mohács.
Read more about his life on my page:
https://www.hungarianottomanwars.com/famous-people/king-szapolyai-janos-1487-1540/
