Emperor Seiwa

850 - 881

Photo of Emperor Seiwa

Icon of person Emperor Seiwa

Emperor Seiwa (清和天皇, Seiwa-tennō, May 10, 850 – January 7, 881) was the 56th emperor of Japan, according to the traditional order of succession.Seiwa's reign spanned the years from 858 through 876. Read more on Wikipedia

Since 2007, the English Wikipedia page of Emperor Seiwa has received more than 140,966 page views. His biography is available in 28 different languages on Wikipedia. Emperor Seiwa is the 5,089th most popular politician (down from 4,375th in 2019), the 365th most popular biography from Japan (down from 276th in 2019) and the 128th most popular Japanese Politician.

Memorability Metrics

  • 140k

    Page Views (PV)

  • 67.73

    Historical Popularity Index (HPI)

  • 28

    Languages Editions (L)

  • 2.67

    Effective Languages (L*)

  • 3.95

    Coefficient of Variation (CV)

Page views of Emperor Seiwas by language


Among politicians, Emperor Seiwa ranks 5,089 out of 15,710Before him are Emperor Go-Saga, Armand-Augustin-Louis de Caulaincourt, Ariston of Sparta, Zhao Feiyan, James III of Majorca, and Joseph Wenzel I, Prince of Liechtenstein. After him are Pothinus, Prince Robert, Duke of Chartres, Władysław I Herman, Manmohan Singh, Mahmud Barzanji, and Jigme Wangchuck.

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Among people born in 850, Emperor Seiwa ranks 14Before him are Pope Romanus, Pope Stephen V, Pope Stephen VI, Pope Stephen VII, Linji Yixuan, and Istakhri. After him are Adelaide of Paris, Vladimir of Bulgaria, Abu Zayd al-Balkhi, Bruno, Duke of Saxony, Trpimir I of Croatia, and Smbat I of Armenia. Among people deceased in 881, Emperor Seiwa ranks 1After him is Orso I Participazio.

Others Born in 850

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Others Deceased in 881

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In Japan

Among people born in Japan, Emperor Seiwa ranks 365 out of 5,560Before him are Yoshitoshi (1839), Emperor Yūryaku (418), Ashikaga Yoshiteru (1536), Takeshi Inoue (1928), Koji Miyata (1923), and Emperor Go-Saga (1220). After him are Masao Uchino (1934), Ono no Komachi (825), Yasuo Suzuki (1913), Ikkyū (1394), Emperor Go-Uda (1267), and Azai Nagamasa (1545).


Among politicians born in Japan, Emperor Seiwa ranks 128Before him are Kōki Hirota (1878), Emperor Shōmu (701), Tomiichi Murayama (1924), Emperor Yūryaku (418), Ashikaga Yoshiteru (1536), and Emperor Go-Saga (1220). After him are Emperor Go-Uda (1267), Azai Nagamasa (1545), Izumo no Okuni (1572), Emperor Go-Kameyama (1347), Shigechiyo Izumi (1865), and Keizō Obuchi (1937).