Berengar, Holy Roman Emperor

Berengar I (Latin: Berengarius, Perngarius; Italian: Berengario; c. 845 – 7 April 924) was the King of Italy from 887, and Holy Roman Emperor after 915, until his death. He is usually known as Berengar of Friuli, since he ruled the March of Friuli from 874 until at least 890, but he had lost control of the region by 896.

Berengar rose to become one of the most influential laymen in the empire of Charles the Fat, and he was elected to replace Charles in Italy after the latter's deposition in November 887. His long reign of 36 years saw him opposed by no less than seven other claimants to the Italian throne. His reign is usually characterised as "troubled" because of the many competitors for the crown and because of the arrival of Magyar raiders in Western Europe. He was the last emperor before Otto the Great was crowned in 962, after a 38-year interregnum.

His family was called the Unruochings after his grandfather, Unruoch II. Berengar was a son of Eberhard of Friuli and Gisela, daughter of Louis the Pious and his second wife Judith. He was thus of Carolingian extraction on his mother's side. He was born probably at Cividale. Sometime during his margraviate, he married Bertilla, daughter of Suppo II, thus securing an alliance with the powerful Supponid family. She would later rule alongside him as a consors, a title specifically denoting her informal power and influence, as opposed to a mere coniunx, "wife."

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