The Anarchy between 1556 and 1570 was a set of civil wars and conflict within the Holy Orenian Empire which occurred during the majority of |John Sigismund's reign as Holy Orenian Emperor. The overarching conflict stemmed from John Sigismund's marked insanity and blundering with his powerful vassals, which allowed for inter-vassal rivalries and feuds to flourish and lords to feel disenfranchised with the Imperial State as a whole. It is also seen as a direct effect of the Eighteen Years' War mere years prior, which drained critical manpower and saw a diminishment of Imperial power after the death of Emperor John I.