San Caio

[1] Another altar in the church held a painting of Saint Bernard contemplating Christ the Savior, with the Blessed Virgin, by Giovanni Battista Camassei.

[1][3] The high altar of the church was decorated with a painting by Giovanni Battista Speranza depicting its patron, Saint Caius, in the act of baptizing.

[3] The cardinalatial title attached to the titulus Gai was subsequently suppressed by Gregory the Great and transferred to Santi Quattro Coronati,[3] and its Lenten station day was taken by the nearby church of Santa Susanna.

[4] A convent operated on the site for another millennium, until Pope Urban VIII decided to clear what remained of the ancient church, and rebuild it from the ground up.

[5][6] In 1878, the church was demolished along with its adjacent monastery in connection with the construction of the Italian Ministry of Defense building and the long boulevard next to it, Via XX Settembre.

San Caio depicted in watercolor between 1826 and 1835 by Achille Pinelli.
The church of San Caio, as seen down the Vicolo di San Nicola da Tolentino (Ettore Roesler Franz, ca. 1880), painted as part of a series depicting Roma sparita — "forgotten Rome".