Yoshimasa MIURA called himself Emperor (he was just one of those who did the same thing) because, Miura claimed, Imperial Prince Takayoshi had been the Emperor of Hokuriku Chotei and he himself was the Takayoshi's descendant.
「自称天皇」の一人・三浦芳聖は、尊良親王が北陸朝廷の天皇であり、自らがその子孫であると主張している。