Too much fact about a historical figure is very restricting. This way, a score of places round the world can claim some connection and coin some cash. A few years ago Glasgow branded itself "City of Love" on the grounds that "some" of the remains (possibly an arm?) of someone with "all the requisite authentications" lie in the church of St Duns Scotus in the Gobals. The rest is history: ever since, Glasgow has been overwhelmed by love-struck tourists from the four corners of the world. Paris, Venice and what have you may never forgive us for the damage we've done.
So we sang a Croatian love-song. It's what Valentine would have wanted. Or at least, no-one can possibly tell us it's not.