Hi: as I think you suspected, Aennes is a phonetic attempt at spelling Angus, normally Aonghas in Gaelic and, depending where you are, pronounced closer to Unnush than the English. When son of Angus, the name becomes Aoghais pronounced approximately Unooish. As Elinga says, Og means young; the English equivalent in my own family where my father and I shared the name Angus was that I was wee Angus, while he was big Angus i.e. Aonghas mor. Ban is another of the distinguishing words, meaning fair, so someone with light hair or pale eyes and eyebrows etc. opposite of dubh, dark. The other word looks again like an attempt to capture something in writing that will have been entirely familiar in speech. Gillebride [servant of St Bride] is a Gaelic male name and it looks as though Niall (Neil) Gillebride probably Neil son of Gillebride in a rather truncated sloinneadh or patronymic was intended. Perhaps someone else may have a better suggestion about this one but it is not something I have met before. Hope this helps. Angus
