Aristotle, mentor to Alexander the Great, was almost charged with impiety for refusal to recognize the divinity of his pupil and not holding the gods in honor.
The Lord reveals to Jeremiah that Jerusalem will be destroyed because of the impiety of the Israelites.
In 1777, he was accused of impiety by Catholicos Anton, who named him as the Antichrist and denounced him to the King.
His appeal was rejected and he wrote to Abbot Francis Aidan Gasquet O.S.B. "if the wish did not sound rather an impiety one could almost desire that Cardinal Gotti might have held me suspect of Liberalism and other dreadful things" (1 September 1903).