Ermenberga (fl. 6th/7th centuries CE) was a Visigoth princess, a daughter of the king of Spain, Witteric[1][2]
In 606 she married Theuderic II, the Frankish king of Burgundy.[3]
Soon after the marriage, she was repudiated by Theuderic, supposedly at the insistence of Brunhild, Theuderic's grandmother, who may have seen Ermenberga as a challenge to her power.[1][4][5] Brunhild, who wielded significant control over the kingdom and grandson, was even accused by some chroniclers - such as Aimoin - of using magic to sway Theuderic away from Ermenberga.[6]
Some chronicles claim that Theuderic kept Ermenberga's dowry when he sent her back to Spain.[7][8] Her eventual fate is uncertain. Her father Witteric, furious at this repudiation, attempted to form a military alliance against his former son-in-law, but failed.[9]