Step 1 : Introduction to the question "Which St. Valentine is usually celebrated Feb. 14?"
...The official roster of saints in the Roman Catholic Church has no shortage of St. Valentines. Feb. 14 is generally the day for celebrating St. Valentine of Terni. If love is in the air more in November, then the celebration of St. Valentine of Viterbo on the third of that month may be a good choice. If getting ahead of the crowd interests you, celebrate St. Valentine of Raetia Jan. 7. The only woman St. Valentine (Valentina) was a Palestinian woman martyred July 25, A.D. 308. Source: History.com