Victorinus Says that the Letter to the Galatians Was Written from (the Polycarpian Stronghold of) Ephesus

"The Epistle to the Galatians was written from the city of Ephesus." (Comm. in Gal., I, prol. [PL, VIII, 1145 D]) He also seems to have believed that the Epistle to the Philippians was written at Rome to converts in the presence of Caesar:

Ipsi vos praecipue salutant, qui sunt de domo Caesaris' (Phil. 4:2k-22). Et virtutem evangelii ostendit, quod de domo Caesaris crediderunt multi: qui utique erecti esse debuerant, et nihil aliud quam de Caesare cogita