To do this I had to take out a deed poll which will be registered in the Supreme Court in Dublin. I dunno exactly, it is an Irish name meaning dark or black. I had wanted to keep the same initial, but also wanted an Irish name. Next was to find a name that could sit comfortably with the English and Irish versions of my surname. For you anglophones out there, Kiera is a very close approximation.
Absolute power is kinda neat.