 France officially ceded Mauritius including all its dependencies to the United Kingdom through the Treaty of Paris, signed on 30 May 1814 and in which Réunion was returned to France.The British Colony of Mauritius consisted of the main island of Mauritius along with its dependencies Rodrigues, Agalega, St Brandon, Tromelin (disputed) and the Chagos Archipelago, while the Seychelles became a separate colony in 1906.It is disputed whether the transfer of Isle de France (As Mauritius was previously known under French rule) and its dependencies to the United Kingdom in 1814 included Tromelin island.