In "Nihon Gaishi" (a historical book on Japan), by Sanyo RAI, the 50-year reign of Ienari is summed up with the words, "The warrior controlled and governed the country. The Tokugawa shogunate reached the height of its glory (during Ienari's reign)."
頼山陽の『日本外史』では、家斉の治世50年間は「武門天下を平治する。ここに至って、その盛りを極む」とある。