<p>Temple on the *Palatine dedicated to the Phrygian mother-goddess <i>Magna Mater</i>, also known as Cybele, and home to the sacred black stone which represented the deity (Prudent., <i>Perist</i>. 10.154-60; Arn., <i>Adv. nat.</i> 7.49). Begun in 204 and dedicated in 191 B.C. (Livy 29.37.2, 36.36.3-5), the temple burned twice before it was restored by Augustus after the second fire of A.D. 3 (<i>RG</i> 19: <i>aedem Matris Magnae in Palatio feci</i>; Val. Max. 1.8.11; Ov., <i>Fast.</i> 4.347-48).</p> <p>Excavations on the SW corner of the Palatine in 1809 first brought the temple to light, while more recent investigations have clarified the architectural development of the structure (Romanelli; Pensabene 1988; id., <i>LTUR</i>). The extant remains, located just above the *Scalae Caci and adjacent to the Temple of *Victoria, indicate that the Augustan rebuilding utilized the earlier Republican foundations and high concrete podium (<i>c</i>. 33 x 17 m) to support a prostyle, hexastyle superstructure in the Corinthian order with a sculpted pediment (Romanelli 235; Pensabene 1988, 60; order and pediment attested on the Villa Medici relief, <i>LTUR</i> fig. 139). A statue of Magna Mater and inscriptions pertaining to her cult found in the vicinity allow these remains to be identified as her sanctuary (<i>CIL</i> VI 496, 3702=30967; a connection first advanced by Rosa in the 1800s, see Romanelli 223).</p> <p>Extending across the façade of the temple was a broad staircase, which led down to a large, paved platform where the <i>ludi Megalenses</i>, dramatic performances and games in honor of Cybele, were held (on the <i>ludi</i>: Cic., <i>Har. resp</i>. 24; Livy 36.36.4-5; for the platform: Romanelli 291-300, 316; Pensabene 1988, 59-60); these steps would have seated spectators. Sometime after the fire of 111 B.C., modest vaults extended this precinct across a street, here identified as the *Clivus Victoriae, that had previously limited the platform on the SW (Pensabene 1988, 59); <i>tabernae</i> (small shops and offices) opening onto the street were located within the barrel-vaulted spaces below the platform (Pensabene 1988, 60). The S edge of the platform remains indeterminate (Pensabene 1985, 189), and its depiction on our map is hypothetical.</p> <p>Enclosing the precinct on the W was a portico; its <i>opus reticulatum</i> walls suggest an Augustan date (Pensabene 1988, 60-61). Joined to the exterior of this portico, at a level <i>c</i>. 3 m below the temple’s precinct, were a series of rooms (separated by <i>opus reticulatum</i> walls, capped on the ends with pilasters) which opened onto a long, rectangular space; partially preserved foundations suggest that this elongated hall may have been a colonnade, perhaps with an upper storey. In addition to providing storage space, these Augustan additions to the Magna Mater complex served as retaining walls for the steep W Palatine slope (Pensabene 1988, 61).</p> <p>One of the most important changes to this temple during the Augustan era concerns the annual ritual bathing of the Magna Mater idol. Originally, this ceremony was carried out in a modest tufa basin (3 x 3.6 m, 1.7 m deep) located in front of the temple and accessed by a flight of steps; however, excavations reveal that the use of this basin was discontinued in the late-Republican or early-Augustan period, perhaps concurrent with the temple’s restoration (Romanelli 301-14, followed by Richardson 243; Pensabene 1985, 184). At that point, the ritual was moved to a shrine outside the city on the banks of the Almo, a small tributary of the Tiber (Ovid, <i>Fast.</i> 4.333-42; Lucan 1.600; Martial 3.47.2; Statius, <i>Silv</i>. 5.222-24; Silius Italicus 8.363; Amm. Marc. 23.3.7; Degrassi, <i>Inscr. Ital.</i> 13.2, 432). Thus, Augustus’ interventions may involve both the physical fabric of the temple and the cult practices in honor of the Great Mother.</p> <p>Just W of the temple were two small structures; the smaller shrine, which shares the temple’s orientation, had been known as the “Auguratorium” (Platner–Ashby) until Coarelli questioned tradition and identified it as the Temple of *Victoria Virgo (<i>LTUR</i>). The larger structure with an independent orientation is identified as the Temple of Victoria.</p>