Galatians 2:11-12

Antioch : a city in Syria located 15 miles inland from the Mediterranean Sea on the Orontes River,a principal city of the province of Pisidia in Asia Minor, west of Iconium.
(36° 12´, 36° 9´); (38° 18´, 31° 10´)

Cephas : a nickname for Simon, son of John

Gentile : a non-Jewish person
(31° 46´, 35° 14´); (31° 46´, 35° 14´)

James : a son of Zebedee; brother of John; an apostle,a son of Alpheus; an apostle,a brother of Jesus; writer of the epistle of James,the father (or brother) of the apostle Judas

Peter : a man who was a leader among the twelve apostles and wrote the two epistles of Peter