Papal inauguration of Pope Leo XIV
St. Peter's Square during the liturgy | |
| Native name | Celebrazione Eucaristica per l'Inizio del Ministero del Vescovo di Roma |
|---|---|
| English name | Eucharistic Celebration for the Beginning of the Ministry of the Bishop of Rome |
| Date | 18 May 2025 |
| Time | 10 a.m. (CEST, UTC+02:00) |
| Venue | St. Peter's Square |
| Location | Vatican City |
| Type | Papal inauguration |
| Participants | 200,000 |
On 18 May 2025, Pope Leo XIV celebrated the inauguration Mass of his pontificate, formally known as the Mass for the Beginning of the Petrine Ministry of the Bishop of Rome. The event was attended by some 200,000 people, including dozens of world leaders and 150 formal delegations. While Leo became the Roman pontiff at the moment of his acceptance in the Sistine Chapel upon being elected in the 2025 papal conclave, the inauguration celebration marked the formal beginning of his ministry as the bishop of Rome. The Mass included the bestowal of the pallium and Ring of the Fisherman, and was followed by meetings with various delegations and world leaders.