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Siemowit IV of Masovia

Duke of Masovia [1]

Born
1352
Died
21 Jan 1426
Nationality
not recorded
Documented descendants
7654

Titles & positions

  • knyaz [1]

House

Religion

Sources

  1. Wikidata Q1980579 (retrieved 1 Nov 2026)
Siemowit IV of Masovia (1352–1426), knyaz | GOTHA Directory