Question: Who is the sibling-in-law of Arruns Tarquinius (Son Of Demaratus)?
Sentence (from "Arruns Tarquinius (son of Demaratus)"): Arruns Tarquinius was the younger son of Demaratus of Corinth, who migrated to the Etruscan city of Tarquinii in the seventh century BC.
Relevant evidence: No