Gerberga of Burgundy was a member of the Elder House of Welf. She was married firstly to Herman I, count of Werl and secondly to Herman II, Duke of Swabia.
Gerberga was born in Arles. She was the daughter of King Conrad of Burgundy and his second wife, Matilda, daughter of Louis IV of France and Gerberga of Saxony. Her paternal aunt was Empress Adelaide. Through her mother, she was related to Louis IV of France, Emperor Otto I and Charlemagne.
Source: Wikipedia