Gertrude of Brunswick

[4] Through her mother, Gertrude was the niece of Adelaide of Turin and first cousins with Bertha of Savoy, German queen and empress consort from 1066 to 1087.

[6] In 1090, after the childless death of her older brother Margrave Egbert II of Meissen, last of the male Brunonids, she inherited the ancestral seat of Brunswick in Saxony.

[7] About 1086, Gertrude married again, this time to the Northeim count Henry the Fat (d. 1101), who was appointed Margrave of Frisia on 14 April 1099.

[8] Their daughter Richenza of Northeim (d. 1142) married Lothar of Süpplingenburg, Duke of Saxony and future Holy Roman Emperor.

After Henry's death in 1101, Gertrud again acted as regent, this time for her second son Count Otto III of Northeim.