The castle was later awarded to Asano Nagaakira, a retainer of Tokugawa Ieyasu, after the Battle of Sekigahara. During the Siege of Osaka, when many of his forces were away with the Tokugawa armies, the local inhabitants rose in revolt again at the instigation of Toyotomi Hideyori. Asano was forced to return to crush the rebellion, and executed 363 rebels at the Tabirako Pass. The execution site was included in the National Historic Site designation, and a memorial tower was constructed in 1968. The Asano clan was awarded Wakayama Domain in 1613, and in line with the Tokugawa shogunate's regulations on "one castle per domain", Akagi Castle was allowed to fall into ruin.
