Question: Madau district is named after "Mattau" which is one of four core Sirayan villages and figured heavily in the fomation of colonial policy on what historical island?
Sentence (from "Dutch pacification campaign on Formosa"): The other aboriginal villages in the area conducted numerous attacks on the Dutch and their allies, with the chief belligerents being the village of Mattau, who in 1629 ambushed and slaughtered a group of sixty Dutch soldiers.
Relevant evidence: No