The deposition of Edward II was a watershed in the legal history of later medieval England. However, the significance of the church in its accomplishment has remained controversial. This article offers a reassessment by providing a brief narrative of the episcopate's involvement in events; analysing the importance of their contribution, with particular reference to the quasi-legal aspect of proceedings; considering whether this participation reflected their own initiative or was something about which they had no choice; and questioning why so many bishops turned to oppose Edward II. It becomes evident that prelates played a key part in Edward II's downfall, and that they became involved as a consequence of the oppressive treatment which he had meted out to them, to their families and to political society more broadly.