Cardinalate
He was created and proclaimed Cardinal-Deacon of S. Maria Liberatrice a Monte Testaccio by Pope Paul VI in the consistory of 24 May 1976. He was appointed as President of the Pontifical Council for the Laity on 20 December 1976. He took part in the conclaves that elected Pope John Paul I and Pope John Paul II in August and October. He served as Cardinal protodeacon (that is the longest serving Cardinal-Deacon) from 2 February 1983 until 22 June 1987. He resigned the presidency of the council on 8 April 1984. He opted for the order of cardinal priests after being ten years as a cardinal deacon and received the title of San Lorenzo in Lucina on 22 June 1987. He lost the right to participate in a conclave when turned 80 years of age in 1990.
Read more about this topic: Opilio Rossi