Gertrude, duchess of Lorraine

http://nl.wikipedia.org/wiki/Gertrudis_van_Vlaanderen

Gertrudis van Vlaanderen (1080-1117) was een dochter van Robrecht de Fries, graaf van Vlaanderen, en van Geertruida van Saksen. Zij werd de echtgenote van Hendrik III van Leuven. In een eigentijdse genealogie worden Hendrik III vier (naamloze) dochters toegeschreven. Twee van hen werden historiografisch geïdentificeerd met: Adelheid, gehuwd met hertog Simon I van Lotharingen, Gertrudis, mogelijk gehuwd met Lambert, graaf van Montaigu en Clermont. Weduwe geworden hertrouwt Gertrudis in 1096 met hertog Diederik van Opper-Lotharingen († 1115) en werd zij de moeder van Diederik van de Elzas.

Gertrude of Flanders

fr.Wikipédia automated translation

Gertrude of Flanders, born around 1070, is the daughter of Count Robert I of Flanders, known as the Frisian, and Gertrude of Saxony. She married for the first time with Henri III of Louvain, then a second time with Thierry II of Lorraine. She is sometimes referred to as the "Duchess of Nancy", the place where the ducal residence moved. She founded the Notre-Dame priory there.

From her first marriage to Henry III of Louvain , a contemporary genealogy attributes four daughters to her (including 2 unnamed). Some historiographical theories cite (without certainty):
Adélaïde, married to Duke Simon I of Lorraine ;
Gertrude, who would have been married to Lambert, count of Montaigu and Clermont 2 .

She married secondly around 1095 Thierry II of Lorraine , son of Gérard I of Lorraine , Duke of Lorraine, and Hedwige de Namur, from whom she had:
Thierry d'Alsace (1100-1168), Lord of Bitche, then Count of Flanders;
Henry I († 1165 ), bishop of Toul;
Ida, married to Sigefroy († 1104), Count of Burghausen;
Ermengarde, married to Bernard III de Brancion ;
a daughter, married to Frederick, Count of Sarrebruck;
Euphronie or Fronia abbess of Remiremont in 1150.

References
1. Jacqueline Carolus-Curien, Pauvres duchesses : l'envers du décor à la cour de Lorraine, Serpenoise, 2007 (ISBN 978-2-87692-715-5 et 2-87692-715-2, OCLC 136587621, lire en ligne [archive]), p. 10.
2. Alphonse Wauters, « Henri III », [d%C3%A9tail des éditions], p. 101-105, Académie royale de Belgique, Biographie nationale, vol. 9, Bruxelles, 1887, 1887, p. 101-106.

Nedeland Wikipedia

Gertrude first married Henry III, Count of Louvain, and bore him 4 children. Later she married our ancestor Thierry II, Duke of Lorraine, and bore him 5 children, including our ancestor Thierry of Flanders.

See http://en.wikipedia.org/wiki/Robert_I,_Count_of_Flanders for more information.