Question: Who is the paternal grandfather of Shō Shitsu?
Sentence (from "Shō Shitsu"): On at least one occasion, Ryukyuan tribute ships were attacked by pirates or rebels, who killed at least one of the Ryukyuan sailors and stole various objects; the authorities of Satsuma Domain declared the head envoy and his deputy to be at fault and had them executed.
Relevant evidence: No