The Collaborative International Dictionary of English v.0.48:

Lepanto \Lepanto\ n.
   The name of a battle in which Turkish seapower was destroyed
   by the Christian League in 1571.

   Syn: battle of Lepanto.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Lepanto
    n 1: Turkish sea power was destroyed in 1571 by a league of
         Christian nations organized by the Pope [syn: Lepanto,
         Battle of Lepanto]