Overview
, also known as Yoshifushi or Yoshifuji, was the 13th shōgun of the Ashikaga shogunate who reigned from 1546 to 1565 during the late Muromachi period of Japan. He was the eldest son of the 12th shōgun, Ashikaga Yoshiharu, and his mother was a daughter of Konoe Hisamichi (later called , Keijuin). When he became shogun in 1546 at age 11, Yoshiteru's name was Yoshifushi (sometimes transliterated as Yoshifuji); but some years later in 1554, he changed his name to the one by which he is conventionally known today. His childhood name was Kikubemaru. His younger brother Ashikaga Yoshiaki became the fifteenth shōgun.
Installed as shōgun
After his father, Yoshiharu, was forced to retire in 1546 over a political struggle with Hosokawa Harumoto, Yoshiteru became Sei-i Taishōgun, albeit a puppet shōgun like his father. Yoshiteru was only 11 at the time and his investiture ceremony was held at Sakamoto, Ōmi Province, outside Kyoto.
Yoshiteru had barely been confirmed as shōgun when his father Yoshiharu made a truce with Harumoto to return to Kyoto. Yet, Harumoto's retainer Miyoshi Nagayoshi parted with Harumoto to take the side of Hosokawa Ujitsuna and the two Hosokawa started a war that drove out Yoshiteru, his father Yoshiharu, and Harumoto as well, from Kyoto. In 1550, Yoshiharu died in Ōmi, unable to return to Kyoto.
From Wikipedia (CC BY-SA 4.0).