St. Valentine was an Italian doctor who later became a Catholic priest. He inspired the creation of the holiday of Valentine’s Day. He died in the year 270 AD in Italy and is the patron Saint of love, marriages, engagements young people, greetings, travelers, bee keepers, and people with epilepsy. He was sent to jail for performing weddings for couples during a time when new marriages were outlawed in the ancient Rome. Before he was killed for refusing to renounce his faith, he sent a loving note to a child he had been helping to teach, the daughter of his jailer, and that note eventually led to the tradition of sending Valentine’s cards.
Source Learn Religions: https://www.learnreligions.com/st-valentine-patron-saint-of-love-124544.