Prince Moriyoshi (護良親王 Moriyoshi Shinnō, also called Prince Morinaga or Prince Daitō) (1308 – August 12, 1335) was a Japanese prince and monk.
Go-Daigo attempted to seize power in 1331 during the Genkō War. Prince Moriyoshi joined forces with Kusunoki Masashige. Moriyoshi tenaciously defended Mount Yoshino. Masashige's heroics defending Chihaya, together with Moriyoshi's efforts to rally troops, brought a large number of warriors to the loyalist cause. By 1333, the rival warlords Ashikaga Takauji and Nitta Yoshisada had both joined the cause; Yoshisada would lay siege to Kamakura in the same year. When the city finally fell, Regent Hōjō Takatoki fled to Tōshō temple, where he and his entire family committed suicide. This marked the end of Hōjō power.:173–174, 180–181
Restored to the throne, Go-Daigo started the Kenmu Restoration. After refusing to appoint Ashikaga Takauji to the post of sei-i taishōgun, Daigo gave it to Prince Morinaga instead. Go-Daigo made the double mistake of giving the title to his sons Moriyoshi and Norinaga, two civilians, thus alienating Takauji and the warrior class, who felt he, as a military man and a descendant of the Minamoto clan, should have been shōgun instead.
Takauji seized Moriyoshi in Yoshino "on imperial warrant", after rumors attributed to Go-Daigo's consort Renshi, that he was preparing an attack. Moriyoshi was then sent to Takauji's brother Tadayoshi in Kamakura. Tadayoshi had Moriyoshi beheaded in late August 1335.:34
- Father: Emperor Go-Daigo
- Mother: Minamoto no Chikako
- Wife: daughter of Kitabatake Moronaga
- Child: Prince Okinaga (b. 1326)
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