The Milesians are of the red thread of Zerah and settled Spain and Ireland when they had to flee due to the birth controversy. At the Babylonian captivity the tender twig merged with the red thread to continue the line of David's reign on David's throne, aided by Jeremiah and Baruch. Yes, northern Spain and Ireland should be related, as the tribe of Dan and the tribe of Judah are related.
It's nice to see that DNA studies are confirming what bible studiers have known for hundreds of years.
CHRIST in BRITAIN
http://www.greatdreams.com/jesus2.htm