Who did Saint Valentine give the first Valentine to?

His name was Valentinus a very popular Latin name of the time (according to Wikipedia.org's page on Saint Valentine. Little is known of him apparently, but this wikipedia article is a very interesting read nonetheless.
Valentinus was a popular name at the time, and there are actually several saints Valentine. The one whose feast day was February 14 we literally know almost nothing about. We don't know exactly who he was, only that he was presumably martyred towards the end of the third century.

He was made a saint by Gelasius I around the year 500, but Gelasius himself implied he didn't really know anything about Valentinus, including him in a list of people "whose names are justly reverenced among men, but whose acts are known only to God."
His Latin name was Valentinus.