You may have be aware that Valentine's Day was named after its patron saint, St. Valentine — but there is some debate about which St. Valentine the celebration truly commemorates. According to History.com, at least two persons called Valentine may have inspired the festival, one of whom was a priest in third-century Rome. According to legend, this Valentine disobeyed Emperor Claudius II's marriage ban (he believed it distracted young troops), illegally married couples in the spirit of love until he was apprehended and put to death.