Sounji in Hakone, founded in 1521 on the deathbed wishes of Hojo Soun, is the mausoleum of the Hojo Five Generations (Soun, Ujitsuna, Ujiyasu, Ujimasa, Ujinao) — rulers of eastern Japan for a century. A Rinzai Zen temple of the Daitokuji line, its founding abbot was Iten Sosei, the 83rd patriarch of Daitokuji in Kyoto. The temple was burned during Toyotomi Hideyoshi’s 1590 siege of Odawara (Hideyoshi himself camped here before moving to Ishigakiyama Castle) but the five stone pagodas of the Hojo lords survived. The renga poet Iio Sogi, friend of Soun, is also buried here.