San Giovanni Calibita, Rome

San Giovanni Calibita is a Roman Catholic church located in the rione of Ripa on the Isola Tiberina, next to the Fatebenefratelli Hospital.

But it is likely a church was established over the site of the temple of Iuppiter Iurarius.

Armellini says the first church here was raised by the soldiers of Genseric and rebuilt in 464 by Peter, bishop of Porto, who held the jurisdiction of the Isola Tiberina.

However the oldest documentary annotation of this church is found in a 1018 bull by Pope Benedict VIII.

During this latter construction, the remains of the saint Giovanni Calibita, were putatively found under the main altar.