Minamoto no Yoshiie was a prominent samurai and military leader during the late Heian period in Japan. Born in 1039, he was a member of the Minamoto clan and is best known for his role in the Gempuku campaign against the Taira clan. His leadership and strategic skills earned him the nickname "Yoshiie the Brave." Yoshiie played a significant role in establishing the power of the Minamoto clan in the region of Kanto. He is celebrated in Japanese history and folklore for his valor and loyalty, becoming a legendary figure in the Tale of the Heike and other historical narratives.