Leprechauns

I thought it was the battle of Moy Tura. Is that some kind of derived form (my Irish isn't that good anymore)?

Apparently there are mixed beliefs but the area that originally had leprechaun myths site it as the offspring of Luach

Lugh not Luach

I would be willing to think the "wee little people" might be the Tuatha de Dannon themselves just transformed to fit into the modern era. The snakes that St. Patrick drove out were the pagans. Ironic considering St. Patrick was a pagan slave who turned christian and was freed to spread the word of the bible.