Agilulf

Agilulf converted from Arian Christianity to Catholicism, aligning the Lombard kingdom with the Papacy and the majority of the Italian population. This shift reduced religious tensions and facilitated integration with the Romanized populace.

Agilulf besieged Rome, threatening the city and Pope Gregory I. The siege was lifted after negotiations, with the Lombards withdrawing in exchange for tribute. This event highlighted the Lombard military threat to the Papacy.

Agilulf negotiated a peace treaty with the Byzantine Exarch of Ravenna, ending decades of intermittent warfare. The treaty secured Lombard control over much of northern Italy and established a period of stability.