Scauniperga was married to Gisulf II, and became the head of the regency and regent of Benevento when her underage son succeeded to the Duchy in 751.[3][4] During the regency, she had herself listed first in official documents and referred to as dux (Duke), the same title as that of her son.[5]
She supported King Aistulf by recognizing his authority and thus confirmed the duchy as a royal vassal state to the kingdom.