Historians are uncertain what stories about Valentine are true. It is known that there was a church dedicated to him in ancient Rome, and he is recognized as a saint by the Catholic Church.
There were a number of Valentines recognized as saints, but the one who is most commonly referred to is a priest from the third century who was commemorated on February 14th, which has become the Valentine's Day holiday. There are a number of legends surrounding Saint Valentine, some of which involve him conducting marriages, but none are supported by historical evidence. Another legend is that Valentine befriended the daughter of a jailer while he was imprisoned and gave her a card that he had signed, beginning the romantic tradition of the holiday.