Aud the Deep-Minded, or Auðr djúpúðga Ketilsdóttir was Norse, as were her parents, Yngveldr Ketilsdóttir and Ketill flatnef. She spent part of her youth in Hebrides where she was converted to Christianity and later she married Olaf King of Dublin. But I don't dare to say that she was a "Norse-Gael", because at the time she lived (the 800's) the viking invasion to British Isles had just begun and Norsemen were only starting coming to Iceland.