Category:Alexander of Masovia

**Aleksander Mazowiecki**
	Polish cardinal
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Date of birth	1400; Płock
Date of death	2 June 1444; Vienna
Place of burial	St. Stephen's Cathedral;
Country of citizenship	Poland;
Occupation	provost; Catholic priest; Catholic bishop (1425–);
Position held	Roman Catholic Bishop of Trento (1423–1444); pseudocardinal (San Lorenzo in Damaso, 1440–1444); bishop;
Father	Siemowit IV;
Mother	Alexandra of Lithuania;
Sibling	Cymburgis of Masovia;
Relative	Ernest, Duke of Austria (brother-in-law);
Authority file
	Q708141; ISNI: 0000000078191194; VIAF ID: 64807139; GND ID: 118953486; Library of Congress authority ID: nr94010845; Bibliothèque nationale de France ID: 15652845k; NL CR AUT ID: jx20090112002; National Library of Spain ID: XX1021771; Nationale Thesaurus voor Auteursnamen ID: 125371381; PLWABN ID: 9810594079305606, 9810618405105606; National Library of Israel J9U ID: 987007257514905171; RegiowikiAT ID: 51499
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