A very old-fashioned Flemish name: Veerle. One of the few bad-ass girl names in the Dutch language. It is derived from medieval times, when 'Veerlen' were travelling warrior women. I do happen to know several men named Fons, some even younger than me. I even know a man named Wies (his full name is Aloysius).
Veerle is a beautiful name, rolls of the tongue. if I had a daughter I would liked to have her called Veerle. My Grandma is from a respected French family, I am not sure how she got named Wies, she is a descendant from the well known French Moreau family, married a mine worker, so rejected.
My son is 5 and has all but Fiep and Fons in his class, but there is a Fien. Old fashioned names (or variations) are very popular these days... or five years ago.