Quentin
来自Big Physics
wiktionary
From Old French. The name of a third century French martyr, from Latin Quīntīnus, a derivative of the Roman praenomen Quīntus, from quīntus(“fifth”). It was brought to England by the Normans, but never became particularly popular.
etymonline
Quentin
masc. proper name, from French, from Latin Quin(c)tianus, from quintus "the fifth." Roman children in large families often were named for their birth order (compare Sextius; also see Octavian). "[P]opular in France from the cult of St Quentin of Amiens, and brought to England by the Normans" ["Dictionary of English Surnames"], but the popular English form as a surname was Quinton.