Berengar I

Berengar I defeated a Magyar raiding army at the Brenta River in northern Italy. This victory temporarily halted Magyar incursions into Italy and enhanced Berengar's reputation as a defender of the kingdom, leading to his imperial coronation.

Berengar I was crowned Holy Roman Emperor by Pope John X. This recognition came after his victory over the Magyars at the Battle of the Brenta River, solidifying his authority in Italy and marking the peak of his power.

Berengar I was forced to recognize Rudolf II of Burgundy as King of Italy after a military defeat. This loss of control over much of northern Italy weakened his position and led to a period of dual kingship, undermining his authority.

Berengar I was assassinated in Verona by a member of his own retinue, possibly at the instigation of his rival, Rudolf II of Burgundy. His death ended his reign and plunged Italy into a period of fragmentation and civil war.