(partial view) Baptism of Constantine by pope Sylvester I. (Bapteme de Constantin par le pape Sylvestre Ier; Taufe : Silvester und Konstantin )Fresco by Cristoforo Roncalli aka Pomarancio (1552/1626) in the right transept.One of the frescoes in the transept depicting an episode of the life of Constantine. Paintings made by several late 16th century Mannerist artists coordinated by Giuseppe Cesari aka Cavalier d'Arpino (1568/1640) .- 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).New facade by Alessandro Galilei (1735)Rome; Italy (2020)