Otowaka

...His childhood name was Ushiwaka, and he was called Kuro. After his father Yoshitomo was defeated and killed in the Heiji Rebellion (1159), he was captured by the Taira clan along with his mother and two older brothers Imawaka (later Ano Zenjyo) and Otowaka (later Enjyo), but because he was only a child of that age, he was rescued and taken to Kurama Temple. Nothing is known about Yoshitsune's actions during this period, and most of it remains in the realm of legend and fiction. ...

*Some of the terminology explanations that mention "Otowaka" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…幼名牛若，九郎と称す。平治の乱(1159)で父義朝が敗死したのち母および2人の兄今若(のちの阿野全成（ぜんじよう）)，乙若(のちの円成（えんじよう）)とともに平氏に捕らえられたが，当歳の幼児であったため助けられて鞍馬寺に入れられた。この時期の義経の行動についてはまったく不明で，ほとんどが伝説･創作の域を出ない。…

※「乙若」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報