About Michael M. Sheehan Michael M. Sheehan was Senior Fellow of the Pontifical Institute of Mediaeval Studies, Toronto. Books by Michael M. Sheehan Marriage, Family, and Law in Medieval Europe Collected Studies by (author) Michael M. Sheehan edited by James Farge Marriage, Family, and Law in Medieval Europe Collected Studies by (author) Michael M. Sheehan edited by James Farge