The earliest appearances of Sagramore, as Sagremor le Desreé (the Impetous), can be found in the 12th century stories by Chrétien de Troyes, where he is one of King Arthur's great warriors and a companion of Erec.

Sagramore is also the subject of a fragmentary German romance, Segremors, the surviving portions of which describe his journey to an island ruled by a fay and his undesired combat with his friend Gawain.

Sagramore was actually an heir to the throne of Constantinople, but his father died while he was still young, and his mother accepted the proposal of King Brandegoris of Estangore in Britain.

The cycle recounts a number of his adventures, often centered around rescuing damsels, and mentions that he had a daughter by one of his paramours who was raised at Arthur's court by Guinevere.

His half-sister, Brandegoris' beautiful daughter Claire, falls in love with Bors and sleeps with him; their child is Elyan the White, who too joins the Round Table before returning to take the throne of Constantinople.