Lady Saigō
Lady Saigō (西郷局 or 西郷の局 Saigō no Tsubone; 1552 – 1 July 1589), also known as Oai, was one of the concubines of Tokugawa Ieyasu, the samurai lord who unified Japan at the end of the sixteenth century and then ruled as shōgun. She was also the mother of the second Tokugawa shōgun, Tokugawa Hidetada.