Quartus

A Christian residing at Corinth, but according to his name of Roman origin, whose salutation Paul sends to the brethren at Rome, Romans 16:23.

Source: ATS Bible Dictionary
Quartus

Fourth, a Corinthian Christian who sent by Paul his salutations to friends at Rome (Romans 16:23).

Source: Easton's Bible Dictionary
Quartus

(fourth ), a Christian of Corinth, (Romans 16:23) said to have been one of the seventy disciples, and afterward bishop of Berytus. (A.D. about 50.)

Source: Smith's Bible Dictionary