Gonçalo Velho Cabral initiated their settlement. They have remained under the control of Portugal, with the exception of the period 1580-1640, when Portugal itself was under the rule of Spain.
Editors. "Portugal discovers the Azores, an uninhabited archipelago". The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=9673, accessed 19 December 2013.]