<p>A trio of Republican temples dedicated to Fortuna and known as the Tres Fortunae was located near the *Porta Collina on the *Quirinal (<i>aedes ... ad Tres Fortunas</i>: Vitr., <i>De arch.</i> 3.2.2). One was dedicated to <i>Fortuna Primigenia</i> in 194 B.C. by Q. Marcius Ralla (Livy 34.53.3) to fulfill a vow made 10 years earlier by P. Sempronius Tuditanus (Livy 29.36.8; Degrassi, <i>Inscr. Ital.</i> 13.2, 461; or perhaps by P. Sempronius Sophus: Coarelli). Ovid records a second temple, this dedicated to <i>Fortuna Publica</i> (<i>Fast</i>. 4.375-76; Dio Cass. 42.26.3-4); <i>Fortuna Publica Citerior</i> may have been the full name of this temple which the <i>fasti Praenestini</i> locate on the Quirinal (IN COLLE: Degrassi, <i>Inscr. Ital.</i> 13.2, 437). Richardson admits the dedication of the third temple remains unknown, but Coarelli proposes that it honored <i>Fortuna Publica Populi Romani Quiritium</i>, which the calendars also locate IN COLLE QVIRINALI (it too had a <i>dies natalis</i> on May 25; Degrassi, <i>Inscr. Ital.</i> 13.2, 461; Ov., <i>Fast</i>. 5.729).</p> <p>Thus, three temples of Fortuna are known to have been located on the <i>collis Quirinalis</i> near the Porta Collina. Vitruvius describes the temple nearest the gate as distyle-in-antis (<i>loc. cit.</i>); believing that <i>citerior</i> (‘nearer’) indicates a location closest to the Porta Collina, Coarelli associates Vitruvius’ description with the Temple of <i>Fortuna Publica Citerior</i>. Lanciani attributed the remains of a large temple discovered in 1887 at the intersection of Via Servio Tullio and Via Flavia to the Tres Fortunae (<i>FUR</i> pl. 10), and thus established the now-traditional intramural location of these temples (Coarelli 286). Coarelli associates this platform with either <i>Fortuna Primigenia</i> or <i>Fortuna Publica Populi Romani Quiritium</i>, but given the absence of confirming data this attribution is not followed here (cf. Richardson, Ziolkowski, and Lugli, who doubt the association of these remains with the Tres Fortunae). Our map conservatively marks the probable location of these three temples inside the Porta Collina with only an index number.</p>