In December 1172, the people from Iga Province fought against the priests of Kasuga-sha Shrine and one of their priest was killed, after this the priests from Kofuku-ji Temple demanded the ones responsible from Iga Province, be punished, they gave a sacred tree from Kasuga-sha Shrine to make the plea.
承安2年（1172年）12月、伊賀国住人が春日社神人と闘争を起こし神人が殺害されたため、興福寺の大衆は伊賀国住人の処罰を要求して、春日社の神木を奉じて強訴した。