Gaudemunda of Lithuania

Gaudemunda Sophia, Princess of Lithuania (also Gaudimantė; ca. 1260 – 1288/1313) was a daughter of Traidenis, Grand Duke of Lithuania (ca. 1270–1282). In 1279 she married Duke of Masovia Boleslaw II (ca. 1254-1313) of the Piast dynasty. He was the son of Ziemowit I, Prince of Masovia, and Pereyaslava, daughter of Daniel of Galicia of the Rurik Dynasty.

Her husband united the Duchy of Masovia and then divided it between their sons, who were:

• Siemowit II
  • Received the Duchy of Rawa
• Trojden I (named after Gaudemunda's father, Traidenis, ca. 1285 – 13 March 1341)
  • Received the Duchy of Czersk and Warsaw
  • Married his cousin Maria, daughter of George I of Halych
  • Great-grandfather of Cymburgis of Masovia
• Wacław I
  • Received the Duchy of Płock

References

• Rowell, S. C. (1994). Lithuania Ascending: A Pagan Empire Within East-Central Europe, 1295-1345. Cambridge Studies in Medieval Life and Thought: Fourth Series. Cambridge University Press. pp. 7–8. ISBN 9780521450119.