The Fourth Ottoman–Venetian War, also known as the War of Cyprus, was fought between 1570 and 1573. It was waged between the Ottoman Empire (with the Barbary States)and the Republic of Venice, the latter joined by the Holy League, a coalition of Christian states formed by the pope which included Spain (with Naples and Sicily), the Republic of Genoa, the Duchy of Savoy, the Knights Hospitaller, and the Grand Duchy of Tuscany.
The war, the pre-eminent episode of Sultan Selim II's reign, began with the Ottoman invasion of the Venetian-held island of Cyprus. The capital Nicosia and several other towns fell quickly to the considerably superior Ottoman army, leaving only Famagusta in Venetian hands. Christian reinforcements were delayed, and Famagusta eventually fell in August 1571 after an 11-month-long siege. Two months later, at the Battle of Lepanto, the united Christian fleet destroyed the Ottoman fleet. The Ottomans rebuilt their naval forces and forced Venice to negotiate a separate peace, ceding Cyprus to the Ottomans and paying an indemnity of 300,000 ducats.
Background
The large and wealthy island of Cyprus had been under Venetian rule since 1489. Together with Crete, it was one of the major overseas possessions of the republic, with the indigenous Greek population reaching an estimated 160,000 in the mid-16th century. Aside from its location, which allowed the control of the Levantine trade, the island possessed a profitable production of cotton and sugar. To safeguard their most distant colony, the Venetians paid an annual tribute of 8,000 ducats to the Mamluk sultans of Egypt, and after their conquest by the Ottomans in 1517, the agreement was renewed with the Ottoman Porte. Nevertheless, the island's strategic location in the Eastern Mediterranean, between the Ottoman heartland of Anatolia and the newly acquired provinces of the Levant and Egypt, made it a tempting target for future Ottoman expansion. In addition, the protection offered by the local Venetian authorities to corsairs who harassed Ottoman shipping, including Muslim pilgrims to Mecca, rankled the Ottoman leadership.
After concluding a prolonged war in Hungary with the Habsburgs in 1568, the Ottomans were free to turn their attention to Cyprus. Sultan Selim II had made the conquest of the island his first priority even before his accession in 1566, relegating Ottoman aid to the Morisco Revolt against Spain and attacks against Portuguese activities in the Indian Ocean to a secondary priority. Not surprisingly for a ruler nicknamed "the Sot", popular legend ascribed this determination to his love of Cypriot wines, but the major political instigator of the conflict, according to contemporary reports, was Joseph Nasi, a Portuguese Jew who had become the Sultan's close friend, and who had already been named to the post of Duke of Naxos upon Selim's accession. Nasi harboured resentment towards Venice and hoped for his own nomination as King of Cyprus after its conquest—he already had a crown and a royal banner made to that effect.
Despite the existing peace treaty with Venice, renewed as recently as 1567, and the opposition of a peace party around Grand Vizier Sokollu Mehmed Pasha, the war party at the Ottoman court prevailed. A favourable juridical opinion by the Sheikh ul-Islam was secured, which declared that the breach of the treaty was justified since Cyprus was a "former land of Islam" (briefly in the 7th century) and had to be retaken. Money for the campaign was raised by the confiscation and resale of monasteries and churches of the Greek Orthodox Church. The Sultan's old tutor, Lala Mustafa Pasha, was appointed as commander of the expedition's land forces. Müezzinzade Ali Pasha was appointed as Kapudan Pasha; being totally inexperienced in naval matters, he assigned the able and experienced Piyale Pasha as his principal aide.
On the Venetian side, Ottoman intentions had been clear and an attack against Cyprus had been anticipated for some time. A war scare had broken out in 1564–1565, when the Ottomans eventually sailed for Malta, and unease mounted again in late 1567 and early 1568, as the scale of the Ottoman naval build-up became apparent. The Venetian authorities were further alarmed when the Ottoman fleet visited Cyprus in September 1568 with Nasi in tow, ostensibly for a goodwill visit, but in reality a poorly concealed attempt to spy on the island's defences. The defences of Cyprus, Crete, Corfu, and other Venetian possessions were upgraded in the 1560s, employing the services of the noted military engineer Sforza Pallavicini. Their garrisons were increased, and attempts were made to make the isolated holdings of Crete and Cyprus more self-sufficient by the construction of foundries and gunpowder mills. However, it was widely recognized that Cyprus could not hold for long unaided. Its exposed and isolated location so far from Venice, surrounded by Ottoman territory, put it "in the wolf's mouth" as one contemporary historian wrote. In the event, lack of supplies and even gunpowder would play a critical role in the fall of the Venetian forts to the Ottomans. Venice could also not rely on help from the major Christian power of the Mediterranean, Habsburg Spain, which was embroiled in the suppression of the Dutch Revolt and domestically against the Moriscos. Another problem for Venice was the attitude of the island's population. The harsh treatment and oppressive taxation of the local Orthodox Greek population by the Catholic Venetians had caused great resentment, so that their sympathies generally lay with the Ottomans.
By early 1570, the Ottoman preparations and the warnings sent by the Venetian bailo at Constantinople, Marco Antonio Barbaro, had convinced the Signoria that war was imminent. Reinforcements and money were sent post-haste to Crete and Cyprus. In March 1570, an Ottoman envoy was sent to Venice, bearing an ultimatum that demanded the immediate cession of Cyprus. Although some voices were raised in the Venetian Signoria advocating the cession of the island in exchange for land in Dalmatia and further trading privileges, the hope of assistance from the other Christian states stiffened the republic's resolve, and the ultimatum was categorically rejected.
Ottoman conquest of Cyprus
On 27 June, the invasion force, some 350–400 ships and 100,000 men, set sail for Cyprus. It landed unopposed at Salines, near Larnaca on the island's southern shore on 3 July, and marched towards the capital, Nicosia. The Venetians had debated opposing the landing, but in the face of the superior Ottoman artillery, and the fact that a defeat would mean the annihilation of the island's defensive force, it was decided to withdraw to the forts and hold out until reinforcements arrived.
The siege of Nicosia began on 22 July and lasted for seven weeks, until 9 September. The city's newly constructed trace italienne walls of packed earth withstood the Ottoman bombardment well. The Ottomans, under Lala Mustafa Pasha, dug trenches towards the walls, and gradually filled the surrounding ditch, while constant volleys of arquebus fire covered the sappers' work. Finally, after 45 days of siege, on 9 September, the 15th assault succeeded in breaching the walls after the defenders had exhausted their ammunition. A massacre of the city's 20,000 inhabitants ensued. Even the city's pigs, regarded as unclean by Muslims, were killed, and only women and boys who were captured to be sold as slaves were spared. A combined Christian fleet of 200 vessels, composed of Venetian (under Girolamo Zane), Papal (under Marcantonio Colonna), and Neapolitan/Genoese/Spanish (under Giovanni Andrea Doria) squadrons that had belatedly been assembled at Crete by late August and was sailing towards Cyprus, turned back when it received news of Nicosia's fall.
Following the fall of Nicosia, the fortress of Kyrenia in the north surrendered without resistance, and on 15 September, the Turkish cavalry appeared before the last Venetian stronghold, Famagusta. At this point already, overall Venetian losses (including the local population) were estimated by contemporaries at 56,000 killed or taken prisoner. The Venetian defenders of Famagusta numbered about 8,500 men with 90 artillery pieces and were commanded by Marco Antonio Bragadin. They would hold out for 11 months against a force that would come to number 200,000 men, with 145 guns, providing the time needed by the Pope to cobble together an anti-Ottoman league from the reluctant Christian European states. The Turks set up their guns on 1 September. Over the following months, they proceeded to dig a huge network of criss-crossing trenches for a depth of three miles around the fortress, which provided shelter for the Ottoman troops. As the siege trenches neared the fortress and came within artillery range of the walls, ten forts of timber and packed earth and bales of cotton were erected. The Ottomans however lacked the naval strength to completely blockade the city from sea as well, and the Venetians were able to resupply it and bring in reinforcements. After news of such a resupply in January reached the Sultan, he recalled Piyale Pasha and left Lala Mustafa alone in charge of the siege. At the same time, an initiative by Sokollu Mehmed Pasha to achieve a separate peace with Venice foundered. The Grand Vizier offered to concede a trading station at Famagusta if the Republic would cede the island, but the Venetians, encouraged by their recent capture of Durazzo in Albania and the ongoing negotiations for the formation of a Christian league (see below), refused. Thus on 12 May 1571, the intensive bombardment of Famagusta's fortifications began, and on 1 August, with ammunition and supplies exhausted, the garrison surrendered the city. The siege of Famagusta cost the Ottomans some 50,000 casualties.
The Ottomans allowed the Christian residents and surviving Venetian soldiers to leave Famagusta peacefully, but when Lala Mustafa Pasha learned that some Muslim prisoners had been killed during the siege, he had Bragadin mutilated and flayed alive, while his companions were executed. Bragadin's skin was then paraded around the island, before being sent to Constantinople.
Holy League
As the Ottoman army campaigned in Cyprus, Venice tried to find allies. The Holy Roman Emperor, having just concluded peace with the Ottomans, was not keen to break it. France was traditionally on friendly terms with the Ottomans and hostile to the Spanish, and the Poles were troubled by Muscovy. The Spanish Habsburgs, the greatest Christian power in the Mediterranean, were not initially interested in helping the Republic and resentful of Venice's refusal to send aid during the siege of Malta in 1565. In addition, Philip II of Spain wanted to focus his strength against the Barbary states of North Africa. The Spanish reluctance to engage on the side of the Republic, together with Doria's reluctance to endanger his fleet, had already disastrously delayed the joint naval effort in 1570. However, with the energetic mediation of Pope Pius V, an alliance against the Ottomans, the "Holy League", was concluded on 15 May 1571, which stipulated the assembly of a fleet of 200 galleys, 100 supply vessels, and a force of 50,000 men. To secure Spanish assent, the treaty also included a Venetian promise to aid Spain in North Africa.
According to the terms of the new alliance, during the late summer, the Christian fleet assembled at Messina, under the command of Don John of Austria, who arrived on 23 August. By that time, however, Famagusta had fallen, and any effort to save Cyprus was meaningless. Before setting sail for the east, Don John had to deal with the mutual distrust and hostility among the various contingents, especially between the Venetians and the Genoese. The Spanish admiral tackled the problem by breaking the various contingents up and mingle ships from various states. Doria assumed command of the right wing, Don Juan kept the centre, the Venetian Agostino Barbarigo received the left, and the Spaniard Alvaro de Bazan the reserve. Unaware of Famagusta's fate, the allied fleet left Messina on 16 September, and ten days later arrived at Corfu, where it learned of the Ottoman victory. The Ottoman fleet, commanded by Müezzinzade Ali Pasha, had anchored at Lepanto (Nafpaktos), near the entrance of the Corinthian Gulf.