Born in 843, in the reign of her grandfather Lothair I, the year that her grandfather and great-uncles partitioned the empire of their own father, she grew up relatively privileged. Her father, Louis II was the eldest son and co-emperor of Lothair I. In 855, when she was 12, Emperor Lothair I died at the age of 60, and her father became Holy Roman Emperor.
Meanwhile, Boso fled into Provence. On Boso"s death in January 887, the Provençal barons elected Ermengard to act as his regent, with the support of Richard. In May 889, she travelled to Charles" successor, Arnulf, to make submission anew.
These were:
Ermengarde/Ermengard (c 877-April 12, 935), married Manasses I the Old, Count of Chalons-sur-Seine (Chalon-sur-Saône?).
Her mother is reported to have been Ermengard
Engelberge/Ethelberga, married firstly Carloman II, secondly William the Pious. Her mother is reported to have been Ermengard
Louis the Blind (before 884-Jun3 5, 928), was betrothed to, and had a relationship with but possibly never married Anna/Eudocia Mamikonian, the illigitiate daughter of Zoe Zaoutzaina by Constantine VII. Ermengard died on 2 June 896 in Vienne, then part of the Frankish Empire, and was buried in the town"s first Cathedral of Saint-Maurice.
Her husband had been buried in the same cathedral in 887.
After her husband"s coup d"état in October 879, she helped defend his cities from her Carolingian relatives. In 880, she successfully defended Vienne itself, the capital, from the combined forces of Charles the Fat and the co-ruling kings of France, Louis III and Carloman.
