Trophimus
Trophimus, meaning 
a foster-child, was an 
Ephesian who accompanied 
Paul during a part of his third 
missionary journey (Acts 20:4; 21:29). He was with Paul in 
Jerusalem, and the 
Jews, supposing that the 
apostle had brought him with him into the 
temple, raised a tumult which resulted in Paul's imprisonment. (See Herod's Temple). In writing to 
Timothy, the apostle says, "Trophimus have I left at Miletum sick" (2 Tim. 4:20). This must refer to some event not noticed in the Acts.
Reference
See also Trophimus of Arles, ('Saint Trophime'), the first bishop and patron saint of Arles, 3rd century CE.