Stories of the Japanese 01176 [Late Northern and Southern Courts Period] The Battle of Uriwari Castle

With the reign of Emperor Go-En'yu beginning, the shogunate had to move to finally end the war with the Southern Court.
April, the 2nd year of Kentoku / 4th year of Oan (1371). Because Uriwari Castle (Hirano Ward, Osaka City), the residence of Masanori Kusunoki, was attacked by the Southern Court forces, Yoriyuki ordered the various generals to rescue Masanori. However, the generals did not move at all, and the only one who tried to fight in earnest was Yoriyuki's adopted son, Yorimoto.
This was because many were dissatisfied with the fact that Masanori, who was once an enemy, had become the shugo (military governor) of two provinces and one district—Kawachi, Izumi, and Sumiyoshi District in Settsu (which, when combined, corresponds to almost the entire current Osaka Prefecture). Indeed, a territory of this scale is a level that would normally be divided and governed by about four shugo, so it is natural that it would cause controversy for a newcomer like Masanori to govern it alone.
In the end, despite the orders of Kanrei (shogunal deputy) Yoriyuki, the rescue army refused to even cross the Yodo River. On May 20th, Yoriyuki was so angry that he said,
"I will resign as Kanrei and become a monk,"
and shut himself away in Saiho-ji Temple (Nishikyo Ward, Kyoto City).
This even startled the 12-year-old Shogun Yoshimitsu at the time. Yoshimitsu rushed to Saiho-ji Temple to persuade Yoriyuki, and by promising to order support for Masanori in the Shogun's name, he was somehow able to dissuade Yoriyuki from becoming a monk.
After that, support for Masanori was decided again by the order of Shogun Yoshimitsu, and the battle for Uriwari Castle was able to proceed in favor of the Northern Court. On November 5th, the Southern Court army finally retreated. Yoriyuki had protected Masanori, his father's enemy, even at the risk of his own position. (Yoriyuki's father, Yoriharu, was killed by Masanori in the Fourth Battle of Kyoto. Refer to episode 01051.)
During this time, the shogunate was also advancing the war to its advantage in the Hokuriku region. On July 28th, Tada-tsune Momoi and Ujiyori Yoshimi fought at Goi-no-sho (Takaoka City, Toyama Prefecture), and the Yoshimi army achieved victory.
The defeated Tada-tsune Momoi fled to Hida on August 8th. Tada-tsune's whereabouts after this are unknown. There are multiple legends regarding the place of his death as follows:
〇 Momoi-go, Gunma District, Kozuke Province (Yoshioka Town, Gunma Prefecture)
There is a gorinto (five-ring pagoda) called the Momoi-zuka along the Mikuni Kaido road, and the nearby place name "Moto-Harima" is said to be a remnant of Tada-tsune, who was the Governor of Harima, living in seclusion.
〇 Matsukura Castle (Uozu City, Toyama Prefecture)
A theory that he died of illness after fleeing to Matsukura Castle.
〇 Iwase Castle (Toyama City, Toyama Prefecture)
A theory that after fleeing to Iwase Castle, he was surrounded by the soldiers of Yoshimasa Shiba and others and committed suicide.
In any case, the activities of Tada-tsune Momoi, the right-wing of the Tadayoshi faction that had troubled the shogunate for many years, came to an end here.