|Cardinal Archbishop of Milan|
|Appointed||7 March 1922|
|Reign ended||7 January 1929|
|Successor||Alfredo I. Schuster|
|Ordination||24 June 1887 (Priest)|
|Consecration||16 May 1911 (Bishop)
by Andrea Carlo Ferrari
|Created Cardinal||11 December 1922|
|Rank||Cardinal-Priest of San Martino ai Monti|
May 6, 1864|
Busto Arsizio, Italy
|Died||January 7, 1929
|Buried||Cathedral of Milan|
|Coat of arms|
Tosi was born in Busto Arsizio, and studied at the seminaries of Monza and Milan. Ordained to the priesthood on 4 June 1887, he entered the Oblates of Ss. Charles and Ambrose in 1889, after serving as a vicar in Busto. Tosi then taught at the Missionary House of the Oblates in Rho until 1909, when he was made Vicar General of Rimini.
On 5 April 1911, Tosi was appointed Bishop of Squillace by Pope Pius X. He received his episcopal consecration on the following 16 May from Andrea Cardinal Ferrari. After becoming Bishop of Andria on 22 March 1917, he served as Apostolic Administrator of Squillace from 10 August 1917 to February 1918.
Pope Pius XI named Tosi to succeed him as Archbishop of Milan on 7 March 1922 and created him Cardinal-Priest of Ss. Silvestro e Martino ai Monti in the consistory of 11 December the same year. He publicly denounced the playing of the opera The Martyrdom of San Sebastian, from which Catholics were prohibited from seeing, at La Scala in 1926.
|Bishop of Squillace
Giuseppe Staiti di Brancaleone
|Bishop of Andria
Ambrogio Damiano Achille Ratti
|Archbishop of Milan
Alfredo Schuster, OSB