Alexandre -Charles Renard studied in Lille the subjects philosophy and Catholic theology. He received on 12 July 1931, the sacrament of Holy Orders and, after completion of ongoing studies on 1933 as a lecturer in Baraeul, Haubourdin and Lille. During his time as a university teacher in Lille, he was also active as a parish pastor in the years 1938 to 1947.
1953 Pope Pius XII appointed him. Bishop of Versailles. He received his episcopal consecration on October 19, 1953 by Cardinal Achille Liénart. Alexandre -Charles Renard participated in the years 1962-1965 at the Second Vatican Council. Pope Paul VI. appointed him on 28 May 1967 Archbishop of Lyon and took him a month later as a cardinal priest with the pro hac vice levied for the titular church of San Francesco di Title Diakonia Paola dei Calabresi in the College of Cardinals to. In 1976, he changed his Cardinal title on the title church of the Santissima Trinità al Monte Pincio. Alexandre -Charles Renard resigned from the leadership of the Archdiocese of Lyon in 1981 from old age and illness. He died on 8 October 1983 in Paris and was buried in the cathedral of Lyon.