He was one of the cardinal electors who participated in the conclaves of August and October 1978, which selected Popes John Paul I and John Paul II respectively.
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Two years later, alongside Cardinals Maglione, Pietro Boetto, Nicola Canali, Mario Nasalli Rocca di Corneliano, Alberto di Jorio, Giovanni Mercati, Raffaele Rossi, Carlo Salotti, Federico Tedeschini and Eugène-Gabriel-Gervais-Laurent Tisserant, he sat on a papal commission analyzing the situation created by the Spanish Civil War and the implications the conflict had on the Roman Catholic clergy in Spain.