Zbigniew Oleśnicki (cardinal)

Zbigniew Oleśnicki, known in Latin as Sbigneus, was a high-ranking Roman Catholic clergyman and an influential Polish statesman and diplomat. He served as Bishop of Kraków from 1423 until his death in 1455. He took part in the management of the country's most important affairs, initially as a royal secretary under King Władysław II Jagiełło and later as the effective regent during King Władysław III's minority. In 1439 he became the first native Polish cardinal.

5 December 1389

Born on the same birth day (5 December): Adam Thorpe • Amy Acker • David Bomberg • December 5 • December 5 • Dynamite Kid • Eva Joly • Fyodor Tyutchev • Gary Allan • George Armstrong Custer • Giuseppe Occhialini • Johannes Heesters • Josh Smith • Margaret Cho • Morgan Brittany • Olli Jokinen • Sarel van der Merwe

Born in the same month (December 1389): John V, Duke of Brittany