Westminster legislation confirming the Crown’s purchase of the sovereign rights of the Isle of Man from the Duke and Duchess of Atholl in 1765.

Parliament had authorised negotiation for a purchase as early as 1725. In 1765 a contract was concluded with John, third Duke of Atholl, and Charlotte, Duchess of Atholl, for surrender of the sovereign rights which Charlotte had inherited through the Stanley line.

The agreement was confirmed by Act of Parliament on 10 May 1765. The consideration was £70,000. The Manx constitutional account later printed by the Manx Society states that, once payment was made, the Island was to be vested in the King and his successors.

The transfer was not a purchase of every Atholl interest on the Island. Ecclesiastical patronage, lands and other proprietary rights not necessarily included within the sovereignty were expressly reserved. Those remaining rights were dealt with separately during the nineteenth century.

The change altered the first estate of the Manx legislature rather than abolishing the legislature itself. Before 1765 legislation had been enacted by the Lord of Man with the other estates of Tynwald. After Revestment the Crown occupied that position. Manx courts and the existing legislative structure continued to operate, now in the name of the British sovereign.