- Sep 9, 2016
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Hiroto Uehara submitted a new Article:
Read more about this article here...Nirayama Castle (韮山城 Nirayama-jō) is located in the northern neck of Izu Peninsula, in present-day Izunokuni. In 1493, Hōjō Sōun who had risen to power in Kokokuji Castle defeated Horikoshi-kubō Ashikaga Chachamaru who had ruled Izu and put the entire peninsula under his control. He rebuilt Nirayama Castle and moved there from Kokokuji Castle, setting it up as his new headquarters. Later, Soun captured Odawara Castle and extended his rule over the provinces of Sagami and Musashi. However, he maintained Nirayama Castle as his power base until his death.
When Sōun's son Ujitsuna transferred his base to Odawara Castle, Nirayama Castle remained an important strategic location for the Hōjō. Ujinori, the son of the third head of the clan Ujiyasu, became the lord of the castle around 1560....