Government of Japan
The Current Emperor of Japan (今上天皇) is Akihito. He was officially enthroned on November 12, 1990. He is styled as "His Imperial Majesty" (天皇陛下), and his reign bears the era name of Heisei (平成). Naruhito, the Crown Prince of Japan, is the heir apparent to the Chrysanthemum Throne.
Emperor Go-Shirakawa
Emperor Go-Shirakawa (後白河天皇 "Go-Shirakawa-tennō") (October 18, 1127 – April 26, 1192) was the 77th emperor of Japan, according to the traditional order of succession. His reign spanned the years from 1155 through 1158, while he remained effectively in power for almost 37 years.