Ottoman arrival Murad's force contained approximately 80,000 men and two cannons, which could fire balls. The Ottoman force paraded around the fortress and offered 300,000 aspras (Turkish currency) to those who would open the gate and let the Ottoman army in the fortress without a fight. The heralds proposing these offers went into the fortress at night time and the garrison commanders gave them a splendid dinner, so that they would get the impression that the enemy was well prepared for a lengthy siege. After the dinner their offers were rejected and they were sent back to the Sultan. The size of the Ottoman army troubled Skanderbeg because of the effects it could have on the morale of his soldiers and on the local population which supported the princes. Skanderbeg thus moved from village to village, disguised as a common soldier, and invoked the fighting spirit of the population. As a result of this activity, the local chieftains agreed to fight the Ottomans and persuaded Skanderbeg to draw up his plans in concert with theirs.
Albanian guerrilla attacks To relieve the garrison of Svetigrad, Skanderbeg continually harassed the Ottoman army. Many of these attacks had been surprise ambushes of isolated Ottoman forces. Hoping to evade Ottoman patrols, Skanderbeg moved towards the Ottoman camp. On 22 June Skanderbeg led a night attack on the Ottoman camp which disillusioned the Ottoman soldiers who had been expecting a quiet campaign. Soon after, when the besiegers were taking their afternoon naps, Skanderbeg sent
Moses with some men, again dressed as peasants, inside the Ottoman camp to reconnoiter for a future assault. Skanderbeg spoke to his troops, encouraging them not to take booty from the camp as this might give the Ottoman forces time to react and launch a counterattack. That night, the Albanians launched their attack, but the noise of the armor and the neighing of the horses inhibited a complete surprise. The periphery of the camp was thrown into confusion, but the bulk of the Turkish troops gathered and organized themselves, pushing the Albanians out of the camp but not before suffering heavy casualties. To prevent further attacks of this sort, Murad detached a contingent of troops under Firuz Pasha to watch the Albanians but it was prone to desertion and thoroughly destroyed with its baggage train being captured. A breach in the walls of Svetigrad was made, but the following infantry assault was repulsed. The Albanians began to hope that the sultan would now be returning to
Edirne.
Stalemate The fighting had reached a stalemate and Murad contemplated his next move. He was advised to pillage the countryside, but the surrounding fields had already been burned by Skanderbeg. The sultan decided to stop chasing bodies of men into the forests to prevent further casualties.
Mehmed, Murad's son, proposed leaving Svetigrad to strike at
Krujë. Murad sternly rejected this, reasoning that the supplies to take Svetigrad would have been wasted and that Krujë would be more strongly defended than Svetigrad. The sultan thus decided to remain at Svetigrad in an attempt to starve the garrison into submission. Meanwhile, the garrison under the leadership of Peter Perlati made several successful
sorties against the Ottomans, in order to ease the encirclement and strengthen his soldiers' morale. The siege of Svetigrad continued, however, and
Marin Barleti writes that the Ottomans bribed a soldier to throw a dead dog into the well of the fortress, forcing the garrison to refuse to drink out of it. It is more likely, however, that the Ottomans had cut off the water supply and induced the garrison to surrender. Given the circumstance, Perlati promised a surrender if the garrison were allowed a safe passage through the Ottoman lines. Prince Mehmed suggested that the garrison should be promised safe passage and then massacred, but Murad rejected his son's proposal, in fear that the rebellion would only be intensified through such an act; he decided to instead return the garrisoning force to Skanderbeg. On 31 July 1448 the garrison of Svetigrad surrendered. ==Aftermath==