The canonical merge case in the registry. Romans imported Apollo directly without renaming — Latin literature uses Apollo, not a translated form. No Italic precedent was renamed. The cult layered Roman institutional features on top of the imported Greek figure: Apollo Medicus at the Campus Martius temple (vowed 433 BCE during plague); Ludi Apollinares (instituted 212 BCE during Hannibalic War); Apollo Palatinus under Augustus (vowed 36 BCE, dedicated 28 BCE following Actium); Sibylline Books custody (transferred 12 BCE from Capitoline to Palatine). One entry, two traditions per the Pleiades-style data model. Per Beard/North/Price 1998; Gagé, Apollon Romain (1955); Miller, Apollo, Augustus, and the Poets (2009).