gardens on the Esquiline mentioned three times
by Frontinus (de aq. 19, 20, 69), existing in the fourth century (Not. Reg.
V; cf. FUR 57 ?), and supposed to have been laid out by Pallas, the
rich freedman of Claudius. According to Frontinus the point where
the rivus Herculaneus branched off from the aqua Marcia, about 175
metres south of the porta Tiburtina, and the end of the Claudia and Anio
novus, about 250 metres north of the porta Praenestina, were behind
these gardens. They must, therefore, have occupied a site very near the
middle of the triangle formed by the via Tiburtina vetus, the via Praenestina-Labicana, and the line of the aqua Marcia, i.e. somewhat south
of the Piazza Vittorio Emanuele (cf. BC 1874, 53-54
; LA 248; HJ 358).