Question: What is the cause of death of Fíachu Findoilches's father?
Sentence (from "Fíachu Findoilches"): The chronology of Geoffrey Keating's "Foras Feasa ar Éirinn" dates his reign to 863–833 BC, that of the "Annals of the Four Masters" to 1231–1209 BC.
Relevant evidence: No