According to the 'Genpei Seisuiki' (The Rise and Decline of the Minamoto and Taira Clans) written years later, MINAMOTO no Takaakira intended to invite Imperial Prince Tamehira to the eastern provinces to start a war and then place Prince Tamehira on the throne, but this is not credible but this is not credible.
後世の「源平盛衰記」には為平親王を東国に迎えて乱を起こし、帝につけようとしていたと書かれているが信用できない。