Yoritomo

Minamoto no Yoritomo 源頼朝
Portrait of Yoritomo, copy of the 1179 original hanging scroll, attributed to Fujiwara Takanobu. Color on silk. In 1995 Michio Yonekura argued that this portrait is not of Yoritomo but of Ashikaga Tadayoshi, the brother of Ashikaga Takauji
1st Kamakura shogun
In office 1192–1199
Monarch	Go-Toba
Preceded by	Office created
Succeeded by	Minamoto no Yoriie
Personal details
Spouse(s)	Hōjō Masako
Relations	Father: Minamoto no Yoshitomo
Children	Sentsumaru Minamoto no Yoriie Minamoto no Sanetomo O-hime Otohime Jogyo

Minamoto no Yoritomo (源 頼朝^?, May 9, 1147 – February 9, 1199) was the founder and the first shogun of the Kamakura Shogunate of Japan. He ruled from 1192 until 1199.

Yoritomo was the third son of Minamoto no Yoshitomo, heir of the Minamoto (Seiwa Genji) clan, and his official wife, Urahime, a daughter of Fujiwara no Suenori, who was a member of the illustrious Fujiwara clan. Yoritomo was born in Atsuta in Owari Province(present-day Atsuta-ku, Nagoya). At that time Yoritomo's grandfather Minamoto no Tameyoshi was the head of the Minamoto.

In 1156, factional divisions in the court erupted into open warfare within the capital. The cloistered Emperor Toba and his son Emperor Go-Shirakawa sided with the son of Fujiwara regent Fujiwara no Tadazane, Fujiwara no Tadamichi as well as Taira no Kiyomori (a member of the Taira clan), while Cloistered Emperor Sutoku sided with Tadazane's younger son, Fujiwara no Yorinaga. This is known as the Hōgen Rebellion.

The Seiwa Genji were split. The head of the clan, Tameyoshi, sided with Sutoku; his son, Yoshitomo, sided with Toba and Go-Shirakawa, as well as Kiyomori. In the end, the supporters of Go-Shirakawa won the civil war, thus ensuring victory for Yoshitomo and Kiyomori. Sutoku was placed under house arrest, and Yorinaga was fatally wounded in battle. Tameyoshi was executed, even after numerous pleas from Yoshitomo. Nonetheless, Go-Shirakawa and Kiyomori were ruthless, and Yoshitomo found himself as the head of the Minamoto and the clan, while Yoritomo became the heir.