Black haired & blue eyed Irish are called “BLACK IRISH”, with overtones that their paternal line contains one of the Spanish
sailors from the defeated Armada. :-)
That is disputed on the AncientPages.com website and other sources. Who knows?
“In 1588, members of the Spanish army were shipwrecked on the coast of Ireland. If they stayed on the island and began families then their genes could have been spread down throughout the generations.
However, most historians believe that the majority of these Spanish soldiers were handed over to the British authorities and executed, so its unlikely that any did survive couldve made much of an impact on the countrys gene pool.”