They are among the seventy apostles and were students of Saint Paul the Apostle.
As for Aristarchus, who is also commemorated on September 27 and January 4, he was a Jew from the city of Thessalonica, mentioned in the Acts of the Apostles as a companion of Paul in Ephesus, where the Ephesians kidnapped him after Demetrius the goldsmith incited them against Paul.
In Colossians 10:4, Paul called him “Aristarchus, my fellow prisoner,” considering him to be like John the Baptist. It is mentioned in the tradition that he became bishop of Apamea in Syria.
Saints Pudis and Trophimus are mentioned in the Second Epistle of Saint Paul to Timothy (4:20-21). Trophimus, it seems, was an Ephesian, and they were martyred in the time of Nero.
Our Greek Orthodox Church commemorates them on April 14th.
Troparia in the third tune
O holy apostles, intercede with the merciful God, that He may grant forgiveness of sins to our souls.