From what I came make out from your pictures the first two coins are of the Roman emperor Valentinian II. The obverse legend looks like DN VALENTINIANVS IVN PF AVG, with the reverse legend of VRBS ROMA. The mint marks are ANTB and ANT Delta for the Antioch mint 2nd & 4th work shop.
I can't make out enough detail on the third coin to say for sure who it is. Maybe someone with better eye sight than I can tell.
I'm moving this thread to the Ancient coin section for more help.























