Originally Posted by
ajax
Added: all individuals from Northern Ireland are automatically dual-nationals of Ireland and the UK. Most claim one or the other predominantly, but all are entitled to claim both.
Which begs the question - what's the most citizenships anyone can have by right of birth as opposed to naturalisation / marriage.
For example someone born in NI to a British parent and a non-British parent can claim British, Irish, any other citizenship the British parent holds & the citizenship(s) of the other parent