2018-12-07 皇嗣 https://ja.wikisource.org/wiki/%E5%A4%A9%E7%9A%87%E3%81%AE%E9%80%80%E4%BD%8D%E7%AD%89%E3%81%AB%E9%96%A2%E3%81%99%E3%82%8B%E7%9A%87%E5%AE%A4%E5%85%B8%E7%AF%84%E7%89%B9%E4%BE%8B%E6%B3%95https://kanpou.npb.go.jp/old/20170616/20170616g00128/20170616g001280035f.htmlhttps://kanpou.npb.go.jp/old/20170616/20170616g00128/20170616g001280036f.html