Porta Tufi, Siena

It is located on Strada di Tufi, now Via Pier Andrea Mattioli, in Siena, region of Tuscany, Italy.

It stands on a peninsula of walls near Sant'Agostino, opening to a road leading south of the city.

The external central arch is surmounted by a round marble relief of the Roman Catholic IHS Christogram in a Sun.

On the corner of nearby buildings plaques announce entry into the Contrada of Tartuca.

A recently added plaque inside the gate recalls that through this portal, in July 1552, Enea Piccolomini and Giovanni Benedetti entered with a small army to aid a Sienese rebellion against the Spanish-Florentine rule, that ended only a few years later with the Battle of Marciano.