The Basilica di Santa Maria Maggiore, Basilica of Saint Mary Major, built under Celestine I (422–432) as a papal Basilica now of diplomatic immunity.

- Image ID: T2R3GC
Lars Ørstavik / Alamy Stock Photo
Image ID: T2R3GC
The Basilica di Santa Maria Maggiore (Italian pronunciation: [ˈsanta maˈriːa madˈdʒoːre]; Basilica of Saint Mary Major, Latin: Basilica Sanctae Mariae Maioris),[2] or church of Santa Maria Maggiore, is a Papal major basilica and the largest Catholic Marian church in Rome, Italy. The basilica enshrines the venerated image of Salus Populi Romani, depicting the Blessed Virgin Mary as the help and protectress of the Roman people, which was granted a Canonical coronation by Pope Gregory XVI on 15 August 1838 accompanied by his Papal bull Cælestis Regina. Pursuant to the Lateran Treaty of 1929 between the Holy See and Italy, the Basilica is within Italian territory and not the territory of the Vatican City State.[3] However, the Holy See fully owns the Basilica, and Italy is legally obligated to recognize its full ownership thereof[4] and to concede to it "the immunity granted by International Law to the headquarters of the diplomatic agents of foreign States." Under the high altar of the basilica is the Crypt of the Nativity or Bethlehem Crypt, with a crystal reliquary designed by Giuseppe Valadier said to contain wood from the Holy Crib of the nativity of Jesus Christ.[44] Here is the burial place of Saint Jerome, the 4th-century Doctor of the Church who translated the Bible into the Latin language (the Vulgate).Wikipedia