The Treaty of Canfranc was an agreement, signed in October 1288, between Edward I of England and Alfonso III of Aragon about the release of Charles II of Naples, who had been captured by the Admiral of Sicily, Roger of Lauria, in a naval battle on 5 June 1284.
. Steven Runciman . 1958 . The Sicilian Vespers: A History of the Mediterranean World in the Later Thirteenth Century . registration . Cambridge University Press . 978-1-107-60474-2 .