The Aleramici (also Aleramids) were a Northern Italian princely and royal dynasty of Frankish origin. They ruled over various northwestern Italian principalities in Piedmont and Liguria from the 10th to the 17th century, as well as over the Kingdoms of Jerusalem and Thessalonica from the 12th to 13th centuries.
Considered one of the foremost crusader dynasties, the Aleramids notably extended their influence across the Eastern Mediterranean, thrice appointed as successors to the Eastern Roman Imperial throne (under the title of Caesar), without ever ensuring their effective installation. They nevertheless produced two Imperial consorts, one of which (Irene) effectively ruled over part of the Empire under the title of Augusta. Other females of the dynasty also appear as consort-regents in several European states.