Unknown
18th century
The Japanese book "徳川御三卿 (Tokugawa Gosankyō)", <a href="https://en.wikipedia.org/wiki/Edo-Tokyo_Museum" class="extiw" title="en:Edo-Tokyo Museum">Edo-Tokyo Museum</a> (<a href="https://ja.wikipedia.org/wiki/%E6%9D%B1%E4%BA%AC%E9%83%BD%E6%B1%9F%E6%88%B8%E6%9D%B1%E4%BA%AC%E5%8D%9A%E7%89%A9%E9%A4%A8" class="extiw" title="ja:東京都江戸東京博物館">江戸東京博物館</a>), 2010