fictitious queen

[bluemoon]

Which fictitious queen shares her name with a castle not far from Dublin?

[Quizmonster]

As your question has gone unanswered for two days now, let me offer what might be of some help. If you click http://www.theirishcastle.com/misc/list.html the link will take you to a web-page with what looks like hundreds of Irish castles' names! I had a swift skim through them and found Clare Castle and Castle Grace, both obviously female names and so possibly those of some fictitious queen, too. If neither of these, a closer study of the list might reveal what you are looking for.