The siege of Diu occurred when a combined Ottoman-Gujarati force defeated a Portuguese attempt to capture the city of Diu in 1531. The victory was partly the result of Ottoman firepower over the Portuguese besiegers deployed by Mustafa Bayram, an Ottoman expert.Guns for the sultan: military power and the weapons industry in the Ottoman Empire, Gábor Ágoston, page 194, 2005
Shortly before the siege the Portuguese encountered roughly 800 enemy soldiers at Siyâl Bet island, engaged them in combat, and killed them all.Monteiro (1991), p.205 There were 9Frederick Charles Denvers: The Portuguese in India, W.H. Allen & Company, 1894, p. 401. or 17 Portuguese killed and 120 wounded.Monteiro (1991), p.205 They then sailed for Diu, but the Muslim alliance defeated them and killed 14.Monteiro, 1991, p.209
Although Diu was successfully defended, victory was short-lived: Diu was blockaded and the Portuguese armada was diverted towards more exposed Gujarati cities.Denvers, 1894, p.403. Ghogha, Surat, Mangrol, Somnath, Bassein, Tarapur, Kelva, Mahim, Bulsar, Agashi, Patam, Pate, and many smaller settlements were assaulted and sacked, some never recovering from the attacks.Pearson, Michael Naylor (1976). Merchants and Rulers in Gujarat: The Response to the Portuguese in the Sixteenth Century. University of California Press, pg. 76Denvers 1894, p.402-404Gazetteer of the Bombay Presidency, Volume 13, Government Central Press, 1882, p.451
In 1534, Sultan Bahadur of Gujarat signed a peace treaty with Governor Nuno da Cunha, granting the Portuguese the territory of Bassein, including Bombay. In 1535, the Portuguese were allowed to construct a fortress at Diu.
See also Siege of Diu (1538) Siege of Diu (1546)
Notes
Gujarati name for jackal island, one of three islands near Diu, João de Barros calls it Ilha de Bet.
References