I've been looking into the "King of ..." ancillary, and it's no problem to implement. But the question is more if it's any point to add it? I mean the Faction Leader is already King, so is there any need for an ancillary?
But the thing is if I put the "King of ..." ancillary in, then you can actually become King of England, Scotland and Ireland, and Prince of Wales etc.
Another thing is that generals can only have 8 ancillaries at the time, meaning if your King already has 8 ancillaries, the he won't get the title King of Scotland or Ireland.
So, should I put the ancillary in the next version?