Fortunatus was one of the Seventy Disciples, commemorated by the Church on June 15 with Achaicus and Stephen and on January 4 with all of the Seventy. St Fortunatus is mentioned by St Paul in I Corinthians 16:17: I was glad when Stephanas, Fortunatus, and Achaicus arrived, because they have supplied what was lacking from you.
Kontakion (Tone 4 )