Jakub of Sienno

His Excellency

Jakub of Sienno
Archbishop of Gniezno
Primate of Poland
ChurchRoman Catholic
ArchdioceseGniezno
DioceseGniezno
Installed1473
Term ended1480
Personal details
Born1413
Died4 October 1480
Łowicz
Coat of arms

Jakub of Sienno (Polish: Jakub z Sienna; 1413–1480) was a medieval Bishop of Kraków in the years 1461–1463, Bishop of Włocławek from 1464, and then Archbishop of Gniezno from 1474. He was also a 15th-century diplomat for the Polish Crown.