A comprehensive historical and constitutional overview of the Isle of Man's legislative and administrative structures, tracing the evolution of the House of Keys, the Council, and the Governor's role from medieval times through the 1860s. Discusses the 1765 Revestment as it relates to Parliamentary sovereignty, the development of representative government, and the balance of power between Crown and Manx institutions. Directly relevant to understanding post-Revestment constitutional arrangements and the framework governing the Island after purchase of its royalties.