The Siege of Klis was fought as part of what wars between the Ottoman Empire and the Habsburg?
Ottoman–Habsburg wars The Ottoman–Habsburg wars were fought from the 16th through the 18th centuries between the Ottoman Empire and the Habsburg (later Austrian) Empire, which was at times supported by the Holy Roman Empire, Kingdom of Hungary and Habsburg Spain. The wars were dominated by land campaigns in Hungary (including Transylvania and Vojvodina), Croatia and Central Serbia.
Siege of Trebizond (1461) The Siege of Trebizond was the successful siege of the city of Trebizond, capital of the Empire of Trebizond, by the Ottomans under Sultan Mehmed II, which ended on 15 August 1461. The siege was the culmination of a lengthy campaign on the Ottoman side, which involved co-ordinated but independent manoeuvres by a large army and navy. The Trapezuntine defenders had relied on a network of alliances that would provide them with support and manpower when the Ottomans began their siege, but failed at the moment Emperor David Megas Komnenos most needed it.