Note:  Do not rely on this information. It is very old.

Fir Volgs

Fir Volgs, or Firbolgs, a race who overran Ireland, probably during the period now known as the Bronze Age. They are supposed to have been Britons. According to tradition, they were led by five chieftains and made their appearance in three bodies, which landed in Wexford, Mayo, and Ulster respectively. They were themselves vanquished by another invading race, the Tuatha De Danaum, but there are traces of them long afterwards, and they are believed to have formed the chief element in the Irish population as late as the 6th century.