Ampliatus (Amplias in the King James Version), was a Roman Christian mentioned by Paul in one of his letters, where he says, "Greet Ampliatus, whom I love in the Lord." (Romans 16:8) He is considered one of the Seventy Disciples by the Eastern Orthodox Church.
The Sacred Tradition makes him the first Bishop of Varna, in Bulgaria.
Kontakion (Tone 8)
This article incorporates text from a publication now in the public domain: Easton, Matthew George (1897). "article name needed". Easton's Bible Dictionary (New and revised ed.). T. Nelson and Sons.