a hill divided from the Quirinal by the valley occupied
by the Horti Sallustiani, running in a westerly direction from the Porta
Salaria of the Aurelian Wall, and then north-north-west from the Porta
Pinciana to the Muro Torto and then west again to the Porta Flaminia.
It thus formed the east part of the seventh region
. It was known in the
early imperial period as Collis Hortulorum (Suet. Nero, 50; in Hist.
Aug. Gord. iii. 32
it is simply called collis-' in campo Martio sub colle
and the post-classical name Mons Pincius comes from its owners in the
fourth century A.D.: see DOMUS PINCIANA
, HORTI ACILIORUM
. The substructions of the last-named altered the contour
of the hill considerably, and were made use of by Aurelian, who included
them in his hastily erected enceinte. See HJ 444-450.