The Portuguese expedition to Otranto in 1481, which the Portuguese call the Turkish Crusade, arrived too late to participate in any fighting. On 8 April 1481, Pope Sixtus IV issued the papal bull Cogimur iubente altissimo, which called for a crusade against the Ottomans, who had occupied Otranto, in southern Italy. The Pope's intention was that after recapturing Otranto, the crusaders would cross the Adriatic and liberate Vlorë (Valona) as well.