Ruppenthal Genealogy . . .

Siemovit, prince of Masovia
abt 1320, Czersk, Mazowieckie Poland - June 16, 1381, Czersk, Mazowieckie Poland

Euphemia von Troppau
1319, Opava, Moravian-Schlesian Czech Republic -
bfr September 11, 1352, Opava, Moravian-Schlesian Czech Republic
Married: ?? - ??

Children . . .

Anna
abt 1344, Czersk, Mazowieckie Poland - abt March 16, 1403

Eufemija Siemovitaite
1345, Czersk, Mazowieckie Poland - abt 1421

Janos 'the Older', piast of Masovia
abt 1348, Wyazogrod, Warszawa, Mazowia Poland - December 8, 1429

Siemowit IV Masovia (Mazowiecki), duke of Masovia
bfr 1352, Czersk, Mazowieckie Poland - December 5, 1425, Czersk, Mazowieckie Poland

Margaret of Masovia
abt 1353, Czersk, Mazowieckie Poland - abt August 14, 1409

(son1)
abt 1359 - ??

(son2)
abt 1362 - abt 1378

Henrikes, prince of Masovia
abt 1368, Rawa Mazowiecka, Rawski, Wojeweodztivo, Iodzkie Poland - abt 1393, Lutsk Ukarine

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