CAMPUS MARTIALIS
an open area on the Caelian hill,
where the festival
of the Equirria was celebrated when the campus Martius
was under water
(Ov.
Fast. iii. 519-523; Fest. 131). It was probably just
outside the
Servian wall, and perhaps identical with the campus
Caelemontanus.
(For an unsuccessful attempt to identify it with the
campus minor of
Catullus (lv. 3) and to locate it outside the porta Capena,
see
BC 1906, 209-223). Its name may have been preserved by the
mediaeval church
of S. Gregorio in Martio (HJ 225 ; HCh 258, 259).