This is a substantial chapter from a published history examining English rule over the Isle of Man following the 1765 Revestment and the subsequent governorship of the fourth Duke of Atholl (1793–1826). It details Treasury mismanagement, the Duke's petitions for compensation and additional rights, parliamentary disputes, the 1791 Commission enquiry, his appointment as governor, conflicts with the Keys and Council, and the final purchase of his remaining rights in 1825–1829. The work directly addresses constitutional power dynamics, revenue disputes, and the conflict between hereditary lordship and Crown sovereignty.