The Prose Lancelot du Lac is available in Gweneth Hutchings' 1938 manuscript called Le roman en prose de Lancelot du Lac: le Conte de la charrette. Her edition is an extract from the French Prose Lancelot based on one of the Rawlinson manuscripts in the Bodleian Library in Oxford. Her basic thesis is that the later prose romances come from Chretien.