 In 1192 he became Bishop of Tournai, but was greatly hampered in the exercise of his episcopal functions by the opposition of the people as well as by the interdict placed on France on account of the divorce proceedings of Philip II.He is the author of a "Summa in decretum Gratiani" (1159), which is to a great extent based on the similar works of Paucapalea, Rufinus and Rolandus (occasionally mistaken for Pope Alexander III).It was first edited by Schulte (Stephen of Tournai, "Die Summa des Stephanus Tornacensis über das Decretum Gratiani", ed.