The siege of Malacca occurred in 1568, when the Sultan of Aceh Alauddin attacked the Portuguese-held city of

Malacca Malacca ( ms, Melaka) is a state in Malaysia located in the southern region of the Malay Peninsula, next to the Strait of Malacca. Its capital is Malacca City, dubbed the Historic City, which has been listed as a UNESCO World Heritage Site si ...

. The city had been held by the Portuguese since its conquest by

Afonso de Albuquerque Afonso de Albuquerque, 1st Duke of Goa (; – 16 December 1515) was a Portuguese general, admiral, and statesman. He served as viceroy of Portuguese India from 1509 to 1515, during which he expanded Portuguese influence across the Indian Ocean ...

in 1511.''Of fortresses and galleys'' Pierre-Yves Mandrin
/ref> The offensive was the result of a pan-Islamic alliance to try to repel the Portuguese from Malacca and the coasts of India.''By the sword and the cross'' Charles A. Truxillo p.59
/ref> The Ottomans supplied cannonneers to the alliance, but were unable to provide more due to the ongoing invasion of

Cyprus Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is geo ...

and an uprising in

Aden Aden ( ar, عدن ' Yemeni: ) is a city, and since 2015, the temporary capital of Yemen, near the eastern approach to the Red Sea (the Gulf of Aden), some east of the strait Bab-el-Mandeb. Its population is approximately 800,000 people. ...

. The army of the Sultan was composed of a large fleet of long galley-type oared ships, 15,000 troops, and Ottoman mercenaries."In 1568 Sultan Alaal-Din of Acheh assembled a huge fleet, with 15000 troops and Turkish mercenaries, and besieged Malacca. Aided by Johore, Dom Leonis Pereira drove off the siege, but Achinese attacks continued for many years." in ''Dictionary of Battles and Sieges'' by Tony Jaque

p.620 The city of Malacca was successfully defended by Dom Leonis Pereira, who was supported by the king of

Johore Johor (; ), also spelled as Johore, is a state of Malaysia in the south of the Malay Peninsula. Johor has land borders with the Malaysian states of Pahang to the north and Malacca and Negeri Sembilan to the northwest. Johor shares maritime bor ...

. Other attacks on Malacca by the Acehnese would continue during the following years, especially in 1570. The offensive weakened the Portuguese Empire. In the 1570s, the Sultan of the

Moluccas The Maluku Islands (; Indonesian: ''Kepulauan Maluku'') or the Moluccas () are an archipelago in the east of Indonesia. Tectonically they are located on the Halmahera Plate within the Molucca Sea Collision Zone. Geographically they are located eas ...

was able to repel the Portuguese from the

Spice Islands A spice is a seed, fruit, root, bark, or other plant substance primarily used for flavoring or coloring food. Spices are distinguished from herbs, which are the leaves, flowers, or stems of plants used for flavoring or as a garnish. Spices ar ...

Notes

{{Use dmy dates, date=June 2017

Malacca (1568) Malacca (1568)

History of Malacca 1568 in the Ottoman Empire 1568 in Portuguese Malacca