Editors. "Charles Emanuel of Sardinia rejects alliance with France and Spain". The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17468, accessed 23 May 2013.]
Charles Emanuel of Sardinia rejects a proposed alliance with France and Spain, and instead signs a convention with Maria Theresa for the defence of Lombardy against Spain.