Siege of Coron (1533–1534)

Siege of Coron
	Part of Ottoman–Habsburg wars
	; The fortress of Coron (Koroni) in 1692
Date	1533–1534
Location	Koroni
Result	First siege: Imperial victory; Second siege: Ottoman victory
Belligerents
Ottoman Empire; Republic of Venice (first siege)	Spanish Empire; Holy Roman Empire; Order of Knights Hospitaller; Papal States; Republic of Genoa; Greek rebels
Commanders and leaders
First siege:; Lütfi Pasha; Hassan the Moor; Suleyman of Albania; Second siege:; Acomer †	First siege:; Andrea Doria; Bernardo Salviati; Rodrigo de Machicao; Jerónimo de Mendoza; Second siege:; Rodrigo de Machicao †
Strength
First siege:; 60 galleys; 2 galiots; 40 carracks; 10 fustas; 10,000 soldiers; Second siege:; 10,000 soldiers	First siege:; 27 galleys; 30 carracks and galleons; 1 brigantine; 2,500 soldiers (in fleet); 2,500 soldiers (in Coron); Second siege:; 2,500 soldiers
Casualties and losses
1 galley sunk; 1 carrack captured; 3 ships captured; Many ships damaged; 400 soldiers killed; 300 soldiers captured	1 brigantine sunk; Part of two crews captured or killed

The siege of Coron in 1533–1534 was a two-part attempt by the Ottoman Empire the recapture of the fortress of Koroni (Coron) in Messenia, Greece, by the Ottoman Empire, after the fortress was occupied by Emperor Charles V's army in 1532.

The first of the sieges was unsuccessful, with an imperial armada under Andrea Doria routing the Ottoman armada under Lütfi Pasha. The event highlighted the weakness of the Ottoman Navy at that time. Admiral and historian Edmond Jurien de La Gravière considered it one of the most skillful naval operations of the 16th century. After the battle, however, the imperial court saw the place too costly to defend and did not reinforce it, and during a second siege the following year, it was abandoned.