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Concept
Emperor Uda
Summary
was the 59th emperor of Japan, according to the traditional order of succession.
Uda's reign spanned the years from 887 through 897.
Before his ascension to the Chrysanthemum Throne, his personal name (imina) was Sadami or Chōjiin-tei.
Emperor Uda was the third son of Emperor Kōkō. His mother was Empress Dowager Hanshi, a daughter of Prince Nakano (who was himself a son of Emperor Kanmu). Uda had five Imperial consorts and 20 Imperial children. Particularly important sons include:
Prince Atsuhito (884–930).
Prince Atsuzane (敦実親王) (893–967).
In ancient Japan, there were four noble clans, the Gempeitōkitsu (源平藤橘). One of these clans, the Minamoto clan (源氏), is also known as Genji. Some of Uda's grandchildren were granted the surname Minamoto (Minamoto is the most used surname for former Japanese royalty.). In order to distinguish Uda's descendants from other Minamoto clan families (源氏) or Genji, they became known as the Uda Genji (宇多源氏). Some of the Uda Genji moved to Ōmi Province and known as Sasaki clan (佐々木氏) or Ōmi Genji (近江源氏).
Among the Uda Genji, Minamoto no Masazane (源雅信), a son of Prince Atsumi (敦実親王) succeeded in the court. Masazane became sadaijin (Minister of the Left). One of Masazane's daughters, Minamoto no Rinshi (源倫子) married Fujiwara no Michinaga and from this marriage three empresses dowagers and two regents (sesshō) were born.
From Masanobu, several kuge families originated including the Niwata, Ayanokōji, Itsutsuji, Ōhara and Jikōji. From his fourth son Sukeyosi, the Sasaki clan originated, and thus Kyōgoku clan originated. These descendants are known as Ōmi Genji today. From this line, Sasaki Takauji made a success at the Muromachi shogunate and the Amago clan originated from his brother.
Uda's father, Emperor Kōkō, demoted his sons from the rank of imperial royals to that of subjects in order to reduce the state expenses, as well as their political influence. Sadami was given the clan name of Minamoto and named Minamoto no Sadami.
Official source
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