Incitatus the treatment of Incitatus by Caligula was an elaborate prank, intended to ridicule and provoke the senate, rather than a sign of insanity, or perhaps a form of satire, with the implication that a horse could perform a senator's duties. Barrett notes that "Many stories were spread about Incitatus, originating most likely from Caligula's own humorous quips." "Possibly out of perverted sense of humor Caligula would pour libations to Incitatus' "salus" [health and well-being], and claimed that he intended to co-opt him as his priest." Ancient sources are clear that the horse was never actually made a consul. Incitatus Incitatus
Holy Roman Emperor of Eastern Francia fell within the boundaries of the Holy Roman Empire. The various German princes elected one of their peers as "King of the Germans", after which he would be crowned as emperor by the Pope. After Charles V's coronation, all succeeding emperors were called "elected Emperor" due to the lack of papal coronation, but for all practical purposes, they were simply called "emperors". The term "sacrum" (i.e., "holy") in connection with the German Roman Empire was first used in 1157 under Frederick I Barbarossa. Charles V was the last Holy Roman Emperor to be crowned by the Pope