Holy League of 1571. The Holy League of 1571 was arranged by Pope Pius V and included the major Catholic maritime states in the Mediterranean except France.It was intended to break the Ottoman Empire's control of the eastern Mediterranean Sea and was formally concluded on 25 May 1571.
   Its members were: the Papal States under Pius V. Habsburg Spain under Philip II. the Republic of Venice. the Republic of Genoa.
   the Knights of Malta. the Grand Duchy of Tuscany and the Order of Saint Stephen under Cosimo I de' Medici.
   the Duchy of Savoy under Emmanuel Philibert. the Duchy of Urbino under Guidobaldo II della Rovere.
   the Duchy of Parma under Ottavio Farnese. These states were to have a force of 200 galleys, 100 other ships, 50,000 infantry, 4,500 cavalry and adequate artillery ready by 1 April each year. Don Juan de Austria, illegitimate half-brother of King Philip II of Spain, was designated supreme commander.The League kept membership open for the Holy Roman Empire, France and Portugal, but none of them joined. The Empire preferred to maintain its truce with Istanbul, while France had an active anti-Spanish alliance with the Ottomans. Portugal had no forces to spare, owing to its heavy engagement in its own Moroccan campaign, its ongoing maritime confrontations with the Ottomans in the Red Sea and the Indian Ocean, and colonial conflicts with the Malaccan and Johorean Sultanates The League initially a
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