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 II, Holy Orenian Emperor'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.