[3][page needed] Matthias Corvinus returned to his capital after strengthening these forts and surrounding them with moats.

[4][page needed] When the Ottoman army arrived at Smederevo, it repelled several attacks and the garrisons of the two Hungarian forts around the city fled.

However, those in the third fortress stood firm and suffered 500 casualties as a result of the Ottoman attack.

Mehmed besieged the fort, but he knew that he could not continue the siege for a long time due to the harsh winter conditions.

Respecting the promise of safe passage, the garrison agreed to surrender as Mehmed prepared to burn the timber he had piled up to set the castle on fire.