The line of succession to the Japanese throne – Royal Central
By Ministry of Foreign Affairs of Japan - http://www.mofa.go.jp/s_sa/sea2/ph/page3e_000444.html, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=48716261 Japan may be the oldest continually hereditary monarchy in the world, but it has one of the…