Firbolgs Irish Mythology Explained
The Firbolgs were the fourth mythological race of people who settled on Ireland, according to the Lebor Gabala (Book of Invasions).
Like the Tuatha de Danann, the Firbolgs were descendants of Nemed, the third group of people who settled on Ireland, prior to the Firbolgs themselves; they were known as the Nemedians.
When the Memedians were driven out of Ireland, by the Fomorians, Nemed’s 3 sons – Fergus Lethderg, Iarbonel and Starn – were leaders of 3 separate clans. Fergus Lethderg migrated to the British Isle, and the isle was named Britian, after Fergus’ son, Britain Máel. The Tuatha de Danann were descendants of Iarbonel’s son, Béothach; Béothach led his clan to somewhere in northern Europe. While the Firbolgs were descendant of Starn, who migrated to Greece with his clan.
The Firbolgs, the descendants of Nemed, returned to Ireland, 11 generations after Starn. They occupied the whole of Ireland for 37 years. The Firbolgs were forced to occupied what was then the province of Connacht, while the Tuatha de Danann have the rest of Ireland, after the 1st battle of Maige Tuired.