Detail of the main facade by Alessandro Galilei (1735).Mosaic of Jesus-Christ the Savior (Christo Salvatori). It was to Jesus the Savior that Constantine dedicated the original church.- Founded during the fourth century; Saint John Lateran (Basilica di San Giovanni in Laterano; basilique Saint-Jean de Latran; Lateranbasilika ) is the Cathedral of Rome; the most important of the four major basilicas and the oldest christian church. It is considered the mother church of the Roman Catholic faithful.- First Construction: 4th century (324);Reconstruction : 17th century. interior in baroque style by Francesco Borromini (1650).Rome; Italy (2020)