When it came to naming the characters, was there any particular process for them? I think some of them of course have Irish/Gaelic (and also English) names. But was it any further than that?
Also, when it comes to Irish mythology, would any further elements be taken from it and be incorporated in any form? Tir na nOg is of course the first element of Irish mythology I recognised, but aside from that, there's of course mentions to Yggdrasil, tho' that's primarily Norse mythology.
EDIT: also for some of the house names, what was the thought process being the names for the four too?