Begga is from the Old Germanic baga (strife). Saint Begga (c. 615-693) was the Frankish noblewoman, daughter of Pepin of Landen and Itta, sister of Saint Gertrude of Nivelles. Her son was Pepin of Herstal, founder of the Carolingian dynasty — making her the great-great-grandmother of Charlemagne. Founded the monastery of Andenne.
Featured in Carolingian chronicles.
Begga reduces to six — the number of Carolingian foremother.