chief characters in an Old French metrical romance, based on an older and widespread legend of friendship and sacrifice. In its simplest form the story tells of the knights Amis and Amiles and of their lifelong devotion to one another.

The tale, probably of Oriental origin, was introduced to the West by way of Byzantium and found its way into French literature through Latin (hence the characters' names: “Amicus” and “Amelius” in Latin). It became attached to the web of Charlemagne legends (Charlemagne legend) in the late 12th-century chanson de geste of Amis et Amiles, a poem that contains passages of great beauty, and later versions appeared in most European languages. The first version of the story in English was Amis and Amiloun, composed in the Midlands dialect late in the 13th century.