A confirmation charter issued by John de Stanley, lord of Mann and the Isles, reaffirming and extending the ecclesiastical privileges and territorial grants originally made by King Magnus to the bishops of Mann and Sodor. The document traces a chain of authority from Magnus through Thomas Randulph (Earl of Moravia) to Stanley, confirming liberties, judicial powers, fisheries, mines, and revenue rights granted to the Church. Relevant to understanding pre-Revestment Manx governance, feudal tenure, and ecclesiastical authority structures.