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Biography
Romuald I (also spelled Romoald and in Italian Romoaldo), duke of Benevento (662–687) was the son of Grimoald, king of the Lombards. When his father usurped the throne in 662, he left Benevento under Romuald and sent the deposed king Perctarit's wife, Rodelinde, and son, Cunincpert, into exile at the Romuald's court in Benevento.
Romuald betrothed his sister Gisa to Byzantine Emperor Constans II. The Byzantines were then besieging Benevento and Romuald's valiant defence of the city was failing, when Grimoald showed up and routed the Byzantine menace. Romuald then took Taranto and Brindisi, much limiting the Byzantine influence in the region. He received military aid from the Bulgar Alcek horde, which had resided in the south of the peninsula since the fall of Rome. In return he gave them grazing rights in 667.
Romuald never saw the kingdom his father had won and so well defended; Perctarit returned and ceased the kingship. He was succeeded at Benevento by his son by Theodrada, daughter of Duke Lupus of Friuli, Grimoald II.
