Nine Valleys lawsuit
The Nine Valleys lawsuit (Spanish: Pleito de los nueve Valles) or simply Valleys lawsuit was a legal battle between the Nine Valleys of the Asturias de Santillana (present-day Cantabria, in Spain) and the Dukedom of the Infantado. It was initiated in 1544, and a ruling was issued in 1581 in favor of the Nine Valleys.