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Siege of Buda (1530)
	Part of Little War in Hungary; Habsburg–Ottoman war of 1529–1533
	; Buda in 1530
Date	1530: Oct. 31 - Dec. 20
Location	Buda, Hungary
Result	Ottoman victory
Belligerents
Habsburg Empire	Ottoman Empire John Szapolyai's Hungarian Kingdom;
Commanders and leaders
Ferdinand I; Wilhelm von Roggendorf	Suleiman the Magnificent ; Lodovico Gritti
Strength
10,000 German, Austrian, Spanish, Czech and Hungarian soldiers	3,000 Turks ; 800 Serbs and Turks
Casualties and losses
Unknown	Unknown

The siege of Buda in 1530 was a failed attempt to capture Buda from the Ottomans by Ferdinand I.^[1]

In 1529 Suleiman the Magnificent captured Buda and installed John Zápolya as his vassal.^[2] Because Zápolya was weak, to protect Buda, Suleiman left a garrison of 3,000 Ottoman soldiers under the command of Alvise (Ludovico) Gritti, who were later joined by 800 Serbs and Turks.^[3]

Ferdinand wanted to rule the entirety of the Kingdom of Hungary, as a result he attempted to occupy Buda which resulted in a siege that lasted from October 31 to December 20, in 1530.^[4]

The besiegers were hindered by the weather and by Gritti’s successful defence of the castle.^[5] Wilhelm von Roggendorf ordered an overall attack on 10 November.^[5] The siege was launched from three points, from the north-east, the east and from the Gellért Hill in the south-west.^[5] The attack from the south-west was initially successful, however the defenders cleverly mobilised the reserves they had set up and drove back the attackers.^[5] An advance of Ottoman relief troops was reported on 20 November, the Habsburg offensive was cancelled and the army set out back to Vienna on 22 November.^[5] It can be concluded that the attackers withdrew in panic as their sick and injured soldiers were captured by the men of John Zápolya who had them massacred.^[5]