Question: The Lords of the Akō Domain in Harima Province associated with the story of what 18th-century historical event in Japan in which a band of "rōnin" (leaderless samurai) avenged the death of their master?
Sentence (from "Asano clan"): The family came to prominence when the sister of Asano Nagamasa married Toyotomi Hideyoshi.
Relevant evidence: No