The Vicar of Bray is a satirical description of an individual fundamentally changing his principles to remain in ecclesiastical office as external requirements change around him. The religious upheavals in England from 1533 to 1559 (and then from 1633 to 1715) made it impossible for any devout clergyman to comply with all the successive requirements of the established church. The original figure was the vicar Simon Aleyn, although clerics who faced vicissitudes resulted in revised versions of the story.