 The Later Hojo Clan was started by Hōjō Sōun and at its zenith during the Sengoku period controlled all of the Kanto region.However, its power attracted the attention of Toyotomi Hideyoshi and when they failed to heed a summon to submit to Hideyoshi at his castle in Osaka, Toyotomi roused a great host numbering 200,000 and laid siege to Odawara Castle.After the fall of the castle, the Hojo lord's father Hōjō Ujimasa and his uncle Hōjō Ujiteru were forced to commit Seppuku while the young lord Hōjō Ujinao was exiled to Mount Kōya.