was a statesman of the Yamato

Yamato period

The is the period of Japanese history when the Japanese Imperial court ruled from modern-day Nara Prefecture, then known as Yamato Province.While conventionally assigned to the period 250–710 , the actual start of Yamato rule is disputed...

 Imperial Court. His alternative names include Emishi and Toyora no Ooomi . After the death of his father Soga no Umako

Soga no Umako

was the son of Soga no Iname and a member of the powerful Soga clan of Japan.Umako conducted political reforms with Prince Shōtoku during the rules of Emperor Bidatsu and Empress Suiko and established the Soga clan's stronghold in the government by having his daughter married with members of the...

, Emishi took over Ooomi, the Minister of state

Minister of State

Minister of State is a title borne by politicians or officials in certain countries governed under a parliamentary system. In some countries a "minister of state" is a junior minister, who is assigned to assist a specific cabinet minister...

, from his father.

According to the Nihonshiki, from the end of the reign of Empress Suiko

Empress Suiko

was the 33rd emperor of Japan, according to the traditional order of succession.Suiko's reign spanned the years from 593 until her death in 628....

 to that of Empress Kōgyoku

Empress Kogyoku

, also known as , was the 35th and 37th emperor of Japan, according to the traditional order of succession.Kōgyoku's reign spanned the years from 642-645. Her reign as Saimei encompassed 655-661...

, Emishi enjoyed influence in the court. After the death of Empress Suiko, Emishi succeeded in installing Prince Tamura on the throne as Emperor Jomei

Emperor Jomei

was the 34th emperor of Japan, according to the traditional order of succession.Jomei's reign spanned the years from 629 through 641.-Traditional narrative:Before Jomei's ascension to the Chrysanthemum Throne, his personal name was or...

 by citing the will of Empress Suiko. Although Prince Yamashiro

Prince Yamashiro

was the eldest son of one of the most famous figures in Japanese history, Prince Shōtoku. Yamashiro claimed the right to Imperial succession in 628, following the death of Empress Suiko...

 was another candidate, Emishi murdered the uncle who nominated Oe no Ou, paving the way for favorite. After the discernment of Emperor Jomei, Emishi supported Empress Kōgyoku

Empress Kogyoku

, also known as , was the 35th and 37th emperor of Japan, according to the traditional order of succession.Kōgyoku's reign spanned the years from 642-645. Her reign as Saimei encompassed 655-661...

.

His daughter, Soga no Tetsuki no Iratsume, was a wife of Emperor Jomei

Emperor Jomei

was the 34th emperor of Japan, according to the traditional order of succession.Jomei's reign spanned the years from 629 through 641.-Traditional narrative:Before Jomei's ascension to the Chrysanthemum Throne, his personal name was or...

 and bore Emperor Jomei

Emperor Jomei

was the 34th emperor of Japan, according to the traditional order of succession.Jomei's reign spanned the years from 629 through 641.-Traditional narrative:Before Jomei's ascension to the Chrysanthemum Throne, his personal name was or...

 one daughter Princess Yata.

In 645, when his son Iruka

Soga no Iruka

was a statesman in the Asuka Period of Japan.He was a son of Soga no Emishi. He was assassinated by Prince Naka-no-Ōe though he tried to murder Prince Yamashiro, and to rule the emperor family. Emishi also committed suicide soon after his son's death, and the main branch of the Soga clan went...

 was murdered in front of the Empress, Emishi committed suicide

Suicide

Suicide is the act of intentionally causing one's own death. Suicide is often committed out of despair or attributed to some underlying mental disorder, such as depression, bipolar disorder, schizophrenia, alcoholism, or drug abuse...

the next day.