Lot Essay
Nitta no Shiro (also called Tadatsune, 1168?-1203) is best known for an incident in 1193 related in Chapter 8 of the Soga monogatari [Tale of the Soga Brothers]. After he had killed Soga Sukenari, the elder of the two brothers, Nitta rode backwards on a wild boar and slew it in the presence of the brothers' deadly enemy Minamoto no Yoritomo. The boar turned out to be a mountain kami [local deity] which put a curse on Nitta so that Yoritomo began to suspect him of disloyalty. He was eventually killed in 12031.
1 Osumi Kazuo et. al. (ed.), Nihon kaku densho jinmei jiten [Dictionary of Imaginary and Traditional Personalities] (Tokyo, 1986), pp. 368-9