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Books about Yasutane:
Yoshishige no Yasutane to Jodo shiso (Japanese Edition) by Moritoku Hirabayashi (2001)
Wiki information Yasutane:
Shiina Yasutane was a Japanese daimyo of the Sengoku period, who was lord of the Shiina clan of Etchu Province. Throughout the 1550s and 60's he led numerous attacks on the Jinbo clan, and in one of the few documented cases of two generals engaging...