William M. Treanor William M. Treanor is dean of Georgetown University Law Center. By this Author Apr 16, 2025 Jesuit Fr. Ladislas Orsy, law professor who advised at Vatican II, dies at age 103William Treanor, dean of Georgetown University Law Center, remembers scholar and canon lawyer Jesuit Fr. Ladislas Orsy: "He was, in every way, a giant, and a truly lovely person, and his legacy is a great one."