Another theory holds that as Yorimasa and the rest of the Settsu Genji had served Emperors Konoe and Nijo, who were directly descended from retired emperor Toba, in the capacity of Protector of the Interior, they were bound to oppose the enthronement of Takakura and Antoku, who were from a different imperial lineage.
他に、頼政等摂津源氏は鳥羽上皇直系の近衛天皇、二条天皇に仕える大内守護の任にあったことから、別系統の高倉・安徳天皇の即位に反発したという説もある。