A friend of mine encountered a strange name in an ancient birth certificate, and the name can be read as either Jilaudus, Jilandus, Gilaudus or Gilandus.
He thinks the form Jilaudus is the most likely, while I think Gilandus is the most likely. Why? Because I didn't find anything on Google about Jilaudus, but I found 1 thing when I tried Gilandus, and lots of things when I tried Giland.
Is it possible that Giland (which sounds quite French to me) is a pet form of Gilles => Aegidius?
As for the Jilandus / Jilaudus thing, well, maybe they are latinized pet forms of Jilles / Jillis, which are also forms of Aegidius (especially in my country).
What do you think? My friend has never found the name Jilaudus as an existing first name, but I did see a couple of people named Giland on Google (plus Giland is also mentioned on Kabalarians.com).