Margaret Piast of Masovia was born before 1358 to Siemowit III of Masovia (c1320-1381) and Euphemia of Troppau (c1320-1352) and died 1392 of unspecified causes. She married Kasimir IV. von Pommern (c1351-1377) . She married Henry VII of Brzeg (c1344-1399) . Notable ancestors include Charlemagne (747-814), Alfred the Great (849-899), Hugh Capet (c940-996). Ancestors are from Russia, Ukraine, France, Germany, the United Kingdom, Belgium, the Byzantine Empire, Sweden, Belarus, Italy, the Czech Republic, the Netherlands, Turkey.
|Offspring of Margaret of Masovia and Henry VII of Brzeg (c1344-1399)|
|Margareta of Brzeg (c1382-c1408)|| |
|Louis II of Brzeg (c1383-1436)||1383||30 May 1436|| Hedwig Zápolya (?-1414)|
Elisabeth von Brandenburg (1403-1449)
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