Fenians, the, [75], [116], [128]; the Fenian cycle of saga, [363] ff.; origin of the name, [364]; who were they, [371] ff.; Keating on them, [372]; entry into the Fianship, [374]; long-extended development of the saga, [375]; kept for guarding coasts, [389]; help Leinster against the High King, [394]; imitation Fenian tale, [597]
Ferdomhnach the scribe, [36], [138], [152]
Feredach, [111]
Feredach, King, a poet, [246]
Ferceirtne or Feirceirtne, [240], [244], [336], [408]
Ferdiad, [327] ff.
Fergil or Virgilius, [224], [448]
Fergus the Great of Scotland, [34]
Fergus mac Roy or Róigh, [60], [69], [198], [245], [295], [311] ff.
Fergus mac Léide, death of, [401]