Mario Nasalli Rocca di Corneliano

Styles of Mario Nasalli Rocca di Corneliano

Reference style	His Eminence
Spoken style	Your Eminence
Informal style	Cardinal
See	none

Mario Nasalli Rocca di Corneliano (12 August 1903 – 9 November 1988) was an Italian Cardinal of the Catholic Church. He served as Prefect of the Apostolic Palace from 1967 until his death, and was elevated to the cardinalate in 1969.

Nasalli Rocca di Corneliano was born in Piacenza to Count Camillo Nasalli Rocca and Marchioness Katie Taffini d'Accegliano. His father died when Mario was a child, and his uncle was Giovanni Nasalli Rocca di Corneliano, who was later Archbishop of Bologna. Nasalli Rocca studied at the Pontifical Roman Seminary, Pontifical Roman Athenaeum S. Apollinare, and the Pontifical Ecclesiastical Academy before being ordained to the priesthood on 8 April 1927.

He then began pastoral work in Rome, and was made a canon of St. Peter's Basilica. After being raised to the rank of a Privy Chamberlain of His Holiness on 22 November 1931, he later became a Domestic Prelate of His Holiness on 1 July 1949. Pope John XXIII named Nasalli Rocca as Master of the Papal Chamber the day after his election, on 29 October 1958. Upon the death of John XXIII on 3 June 1963, Nasalli Rocca and all major Vatican officials, in accord with custom, automatically lost their positions during the sede vacante. He was later confirmed as the papal majordomo by Pope Paul VI on the following 21 June. He also became Prefect of the Apostolic Palace on 1 April 1967.