He is said to have been a "clerk" from a poor family who eventually became a jongleur; he settled at the courts of Toulouse and then Béziers.
They meet in a simulation based on ancient Egypt, where their leader, Felix Jongleur, appears as Osiris and obliges other members to present themselves as various Egyptian deities.
The Confrérie des jongleurs et bourgeois d'Arras was a fraternity of jongleurs founded in Arras in or around 1175.
The sole source of information about his life comes from a satire of Peire d'Alvernhe, which mentions that Grimoart was a knight and jongleur.
According to his vida, he was a joglars and trobaire (troubadour) who stayed for a long time in Montferrat, Cortemilia, and the Piedmont at the court of Ottone del Carretto (fl. 1190–1233).
He began his career as a joglar and he spent his formative years at the court of Hug de Mataplana, which he often recalls fondly in his poems and songs.