John I Albert (Polish: Jan I Olbracht) was king of Poland from 1492 to 1501. He was defeated during a military operation in Bukovina in the battle against Moldavia.
John I Albert (Polish: Jan I Olbracht) (1459-1501) was king of Poland from 1492 until 1501.
The loss of revenue consequent upon the secession of Lithuania placed John Albert at the mercy of the Polish Sejmiki or local diets, where the szlachta, or country gentry, made their subsidies dependent upon the king's subservience.
Primarily a warrior with a strong taste for heroic adventure, John Albert desired to pose as the champion of Christendom against the Turks.