Although many assume that the biblical Mark the Cousin of Barnabas (Colossians 4:10) is the same as John Mark (Acts 12:12, 25; 13:5, 13; 15: 37) and Mark the Evangelist, the traditionally believed author of the Gospel of Mark, according to Hippolytus of Rome,[REF] the three "Mark"s are distinct persons.
Other sources bring Barnabas to Rome and Alexandria.