Louis II of Hungary child János Wass
Jagiellons in natural line
Although Louis II's marriage remained childless, he probably had an illegitimate child with his mother's former lady-in-waiting, Angelitha Wass. This son was called John (János in Hungarian). This name appears in sources in Vienna as either János Wass or János Lanthos. The former surname  is his mother's maiden name. The latter surname may refer to his occupation. "Lanthos" means "lutenist", or "bard". He received incomes from the Royal Treasury regularly. He had further offspring.
offspring progeny issue descendant heir