Tristão da Cunha discovered a group of remote islands in the south Atlantic Ocean, 1750 miles from South Africa. He named the main island after himself, Ilha de Tristão da Cunha, which was later anglicised to Tristan da Cunha.
Editors. "Tristan de Cunha discovers an island which he names after himself". The Literary Encyclopedia. First published 01 January 2010; last revised 30 November -1.
[http://www.litencyc.com/php/stopics.php?rec=true&UID=9871, accessed 26 April 2015.]