From EAGLE MediaWiki
Corpus Inscriptionum Latinarum; , X, 1483 
Base for statue of empress Helena, empress, mother of Constantine I. Neapolis (Campania). 325-329. 
No aliases defined. [add]
To the most pious and merciful, our lady, Augusta, Helena, mother of our lord victorious Augustus Constantinus, and grandmother of our blessed lords Caesars, wife of the deified Constantius; the council ( ordo ) of Naples and the people [set this up].
Wikipedia pages linked to this item