Louis Bouyer

Louis Bouyer (17 February 1913 – 22 October 2004), was a French Catholic priest and former Lutheran minister who was received into the Catholic Church in 1939. During his religious career he was an influential theological thinker, especially in the fields of history, liturgy and spirituality, and as ''peritus'' helped shape the vision of the Second Vatican Council. He was a member of the Oratory of Jesus.

Along with Cardinal Joseph Ratzinger, Hans Urs von Balthasar, and others, he was a co-founder of the international review ''Communio''. He was chosen by the pope to be part of a team to initiate the International Theological Commission in 1969. Provided by Wikipedia