Shotoku is the name of an era ruled by the sixth shogun Ienobu TOKUGAWA and the seventh shogun Ietsugu TOGUGAWA when mainly Hakuseki ARAI, the shogun's teacher and Akifusa MANABE, the lord chamberlain took the reins of government.
正徳は江戸時代の6代将軍徳川家宣・7代徳川家継の治世の年号で、主に将軍侍講（政治顧問）の新井白石と側用人の間部詮房らが実際の政権を担った。