GERTRUDE OF POLAND

'Gertrude' (about 1025- 4 January 1108), princess of Poland, was the daughter of King Mieszko II of Poland and Richensa of Lotharingia.
In 1043, she was married to Iziaslav of Kiev in a double ceremony that also married her brother to Iziaslav's sister. She had one son, Yaropolk Iziaslavich, by her husband.
Gertrude was the owner of a medieval illuminated manuscript, known as the ''Egbert Psalter'' or ''Trier Psalter'', that had been created in the late 10th century for archbishop Egbert of Trier. She included her prayer book as part of the codex. In the prayer book she prays six times for Yaropolk, "''unicus filius meus''" (my only son).
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