Battle of Lepanto, 7 October 1571, in the Ionian Sea at the entrance to the Gulf of Patras near Lepanto in present-day Greece. The Christian Mediterranean powers, organised under Pope Pius V, with Spain at their head, won a victory over the Ottoman Empire here, Historical, digitally restored reproduction from an original of the time, Battle of Lepanto, 7 October 1571, in the Ionian Sea at the entrance to the Gulf of Patras near Lepanto in present-day Greece. The Christian Mediterranean Powers