Minato Castle 湊城

Minato Castle 湊城 - Credit: Wikimedia Commons

was a Japanese castle in what is now Tsuchizaki Minato, Akita, Akita Prefecture, Japan. Throughout the Muromachi period, Minato Castle was home to the Ando clan, daimyō of Akita Domain, rulers of northern Dewa Province. Read more on Wikipedia

type: military installation
date from: 1436

Source: en.wikipedia.org