"on the island of St Helena"
Napoleon in Saint Helena by Francois-Joseph Sandmann
Public DomainNapoleon in Saint Helena by Francois-Joseph Sandmann

 The island of St Helena lies in the South Atlantic Ocean, 1,870 km west of Africa. It is one of the most isolated islands in the world, and was uninhabited until its discovery by Portugal in 1502. Napoleon was exiled here after his final defeat in 1815. He was put in the charge of Hudson Lowe, who has been criticised by historians for his poor treatment of the former emperor.

Napoleon's residence on St Helena, Longwood House, is currently the subject of a joint Anglo-French preservation campaign, as the house is in urgent need of restoration. See here for more information on how to donate to the campaign.