Spain and France sign the Treaty of Madrid, which aims at mutual
defence and guarantee. Its terms also deal with the question of the
Italian duchies, and demonstrate France's support of the Spanish
claim to the island of Gibraltar.
Citation:
Editors. "Treaty of Madrid between Spain and France".
The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17255, accessed 22 May 2013.]