[1][2] Pope Pius XII appointed him titular archbishop of Lemnos and coadjutor bishop of Toulouse on 24 April 1947.

He was appointed Pro-Prefect of the Prefect of the Congregation of Seminaries and Universities by Pope Paul VI on 28 January 1966.

Pope Paul named him full Prefect of the Congregation for Catholic Education and grand chancellor of the Pontifical Gregorian University on 17 January 1968.

He was appointed as the first President of the newly established Pontifical Council for Culture on 20 May 1982.

He died in 1994 and was buried temporarily at the Campo Verano, Rome, awaiting completion of his definitive tomb in the church of San Luigi dei Francesi.