Circulated by the Council on Foreign Relations to Anglican members of the Anglican-Roman Catholic Sub-Commission on Mixed Marriages, at Windsor, 16th-18th April 1968. The paper was initially prepared by Roman Catholic theologians and canonists at the request of the Vatican’s Secretariat for Promoting Christian Unity for the WCC-Vatican consultation at Nemi from 26 February to 4 March 1967. This is an English translation from the French version of the document produced by the full Roman Catholic group as a result of their study of “Marriage and the Division among the Churches”.