The elite cadre of Irish warriors who fought directly for the Ard Righ (High King) of Ireland.
They followed only the laws of the Ard Righ and their own code.
Myth and legend say to enter the Fenians, one had to stand in a three foot hole, allowing only size to turn, armed with only a rod and deflect 7 spears thrown at 30 feet. The test showed skill and lick and could only be tried once.