Gertrude of Brunswick

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Gertrude of Brunswick
Margravine of Meissen
Bornc. 1060
Died9 December 1117 (aged 56–57)
BuriedBrunswick Cathedral
Noble familyBrunonids (by birth)
House of Nordheim (by marriage)
House of Wettin (by marriage)
Spouse(s)Dietrich II, Count of Katlenburg
Henry, Margrave of Frisia
Henry I, Margrave of the Saxon Ostmark
Dietrich III of Katlenburg
Richenza of Northeim
Otto III of Northeim
Henry II, Margrave of Meissen
Gertrude of Northeim
FatherEgbert I, Margrave of Meissen
MotherImmilla of Turin

Gertrud of Brunswick (German: Gertrud von Braunschweig; c. 1060 – 9 December 1117), was Countess of Katlenburg by marriage to Dietrich II, Count of Katlenburg, Margravine of Frisia by marriage to Henry, Margrave of Frisia, and Margravine of Meissen by marriage to margrave Henry I. She served as regent of the County of Katlenburg during the minority of her son Dietrich III of Katlenburg, and as regent of the County of Northeim during the minority of her son Otto III of Northeim. She was also one of the leaders of the insurrections against Emperor Henry IV and his son Henry V.


Gertrud was the only daughter of Margrave Egbert I of Meissen (d. 1068) and Immilla of Turin (d. 1078), and as such a member of the Brunonid dynasty. She thereby was a great-granddaughter of Gisela of Swabia, German queen and empress consort from 1024 to 1043.


She was married to Count Dietrich II of Katlenburg (d. 1085). 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. When her husband died, she acted as regent for their son Dietrich III.


About 1086, Gertrude married again, this time to the Northeim count Henry the Fat (d. 1101), who was appointed Margrave of Frisia in 1099. Their daughter Richenza of Northeim (d. 1142) married Lothar of Süpplingenburg, Duke of Saxony and future Holy Roman Emperor. He received the Brunonen's seat at Brunswick. After Henry's death in 1101, Gertrud again acted as regent, this time for her second son Count Otto III of Northeim.

Tomb at Brunswick Cathedral


Gertrud's third husband was the Wettin scion Henry I of Eilenburg (d. 1103), Margrave of Margraviate of Meissen since 1089. Their son, Henry II was born after his death in 1103. She was one of the leaders of the insurrections against Emperor Henry IV and his son Henry V. She protected the interests of her sons and Margrave Henry II later secured the Wettin authority over Meissen.


  • The information in this article is based on and/or translated from its German equivalent.
  • (in German)