In the modern piazza the steps leading up to this basilica and the base of a large monument were found in 1907; evidently only part of the piazza represents the ancient forum.
Koledar, tako zgodovinar Svetonij, ki ga je izdelal slovničar Marcus Verrius Flaccus v cesarskem forumu Praeneste (v Madonni dell'Aquila), je bil odkrit leta 1771 v ruševinah cerkve sv.