St. Valentine was a Roman priest martyred during the reign of Claudius II. Claudius decreed that young men should not be married because he felt they made better soldiers and thus increased his pool of men for his army. St. Valentine was arrested and imprisoned upon being caught marrying Christian couples and otherwise aiding Christians who were at the time being persecuted by Claudius in Rome. Helping Christians at this time was considered a crime. Claudius took a liking to this prisoner -- until Valentine tried to convert the Emperor -- whereupon this priest was condemned to death. He was beaten with clubs and stoned; when that didn't finish him, he was beheaded outside the Flaminian Gate.
St. Valentine is the patron saint of affianced couples, bee keepers, engaged couples, epilepsy, fainting, greetings, happy marriages, love, lovers, plague, travelers, & young people. He is represented in pictures with birds and roses.
And there you have it!
Have a Happy Valentine's Day!