Question: Who is Fíacha Sroiptine's paternal grandfather?
Sentence (from "Fíacha Sroiptine"): Fíacha's druid, Dubchomar, prophesied that if Fíacha was to defeat the Collas, none of his descendants would ever rule Ireland, and likewise, if the Collas won, none of their descendants would be king after them.
Relevant evidence: No