Breogán

Breogán (also spelt Breoghan, Bregon or Breachdan) is a character in the Lebor Gabála Érenn, a medieval Christian history of Ireland and the Irish (or Gaels).

The Gaels, including some of Breogán's sons, sail to Ireland from Brigantia and agree to divide it between them and the Tuatha Dé Danann, the Irish pagan gods, who take the Otherworld.

[4] A similar story about a monk who voyaged to a marvelous island he saw from the top of the tower of Brigantia was written in the first years of the eleventh century in Galicia.

[5] His son was Bile, who was in turn the father of Milesius (also called Míl Espáine, soldier of Hispania or Spain), said to be the ancestor of the Irish people.

Although this is generally regarded as myth, the conquering of Ireland by people coming from the Iberian peninsula in prehistoric times fits in with a genetic study conducted in 2006 at Oxford University, which concluded that the majority of people in the British Isles are actually descended from neolithic farmers coming from the coastal north regions of Spain.