Regillensis
Could not find Regillensi in Logeion dictionaries.
Regillensi Proper-name adjective: neuter dative singular, Proper-name adjective: feminine ablative singular, Proper-name adjective: feminine dative singular, Proper-name adjective: masculine ablative singular, Proper-name adjective: masculine dative singular, Proper-name adjective: neuter ablative singular of Regillensis
Rēgillēnsis, (14) m. , surnom de Postumius [qui vainquit les Latins près du lac Régille] : Liv. 4, 49, 7.
Regillensis
an agnomen of the Claudii [Claudius], and of the Albini, a family of the Postumia gens [Albinus].