HORTI AGRIPPINAE
the gardens of the elder Agrippina, on the right bank
of the Tiber, which afterwards (33 A.D.) belonged to Caligula (Sen. de ira
iii. 18; Philo Iud. de legat. ad
Gaium ii. 572). They occupied the present
site of S. Peter's, and extended to the Tiber, from which they were
separated by a porticus and terrace. Within them Caligula built the
circus Gai et Neronis, and it was probably in these gardens, under the
name horti Neronis (Tac.
Ann. xv. 39,44; cf. xiv. 14), that the martyrdom
of many Christians took place.