Van wie was John Corvinus?

John Corvinus (Hungarian: Corvin János, Croatian: Ivaniš Korvin, Romanian: Ioan Corvin; 2 April 1473 – 12 October 1504) was the illegitimate son of Matthias Corvinus, King of Hungary, and his mistress, Barbara Edelpöck.

Bianca Maria Sforza (5 April 1472 – 31 December 1510) was Queen of Germany and Empress of the Holy Roman Empire as the third spouse of Maximilian I. She was the eldest legitimate daughter of Duke Galeazzo Maria Sforza of Milan by his second wife, Bona of Savoy.