Siege of Buda (1530)
The siege of Buda in 1530 was a failed attempt to capture Buda from the Ottomans by Ferdinand I. In 1529 Suleiman the Magnificent captured Buda and installed John Zápolya as his vassal. 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. 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. The besiegers were hindered by the weather and by Gritti’s successful defence of the castle.