<p>Toponym and residential quarter on the SE *Campus Martius, inhabited at least since the time of Sulla (Lega). The name retained its currency through the late-antique and mediaeval periods, and Early Christian sources link the Pallacinae with the Church of S. Marco in Piazza Venezia (<i>Lib. Pont.</i> 1.202). Attested as a <i>vicus</i> in a scholion of Cicero (<i>Rosc. Am.</i> 132: <i>vicus Pallacinae</i>), the Pallacinae quarter had a local bath complex, near which Sextus Roscius was murdered in 81 B.C. (unlocated; Cic., <i>Rosc. Am.</i> 18: <i>ad balneas Pallacinas</i>). In addition, floors of some late-Republican buildings, perhaps houses, were discovered under the “crypta” of the *Theatrum: Balbus, which may have stood at the W limit of the Pallacinae. Toward the E were a series of late-Republican <i>tabernae</i> (stalls and shops) that flanked the major E–W road in this area; whether or not this street carried the name of the quarter remains open (s.v. *Pallacinae: Street; cf. Richardson).</p>