Skanderbeg and his forces besieged the Ottoman-occupied castle and began pounding it with the help of the Aragonese artillery. The commander of the Ottoman garrison then proposed to hand over the city if no reinforcements would come for a month. Believing the situation was well in hand and that the castle would fall, Skanderbeg left with a sizable contingent of his army in the direction of Vlorë. Although he tutored his commanders, Skanderbeg could never bring them up to his level of knowledge in military affairs. His formal training and experience in Anatolia and his service with the Ottoman army proved to be valuable for the Albanian resistance against the Ottomans.
At the head of the remaining force he left Muzaka Thopia, his brother-in-law, since Berat was formerly a possession of Muzaka’s family. After a successful bombardment, the Ottoman commander of the garrison agreed to turn over the keys to the castle if the sultan had not sent reinforcements within a certain amount of time. This was a ploy to fool the Albanian forces into a false sense of security and delay any actions, giving reinforcements time to arrive.
The sultan sent an army of 20,000 troops led by Issa beg Evrenoz. The reinforcements surprised the Albanian army in mid-July, 1455. Only one Albanian commander, Vrana Konti (Kont Urani), managed to resist the initial Ottoman onslaught and pushed back several attacking waves. When Skanderbeg returned, however, the Ottoman relief force was repulsed and defeated. But the Albanians were exhausted and their numbers had dwindled to the point where the siege could not be continued.
More than 5,000 of Skanderbeg’s men died, including 800 men of a 1,000-man-strong contingent of Neapolitans from Alphonso V as experts in demolition, artillery, and siege warfare. The commander of the siege, Muzaka Thopia, also died during the conflict.
- Franco, Demetrio (1539), Comentario de le cose de’ Turchi, et del S. Georgio Scanderbeg, principe d’ Epyr, Venice: Altobello Salkato, ISBN 99943-1-042-9
- Frashëri, Kristo (2002), Gjergj Kastrioti Skënderbeu: jeta dhe vepra, 1405–1468 (in Albanian), Tiranë: Botimet Toena, ISBN 99927-1-627-4
- Hodgkinson, Harry (1999), Scanderbeg: From Ottoman Captive to Albanian Hero, London: Centre for Albanian Studies, ISBN 978-1-873928-13-4
- Noli, Fan Stylian (2009), Scanderbeg, General Books, ISBN 978-1-150-74548-5
- Schmitt, Oliver Jens (2009), Skënderbeu, Tiranë: K&B, ISBN 978-9995666750
- Matkovski, Aleksandar (1983). Otporot vo Makedonija vo vremeto na turskoto vladeenje: Buni i vostanija. Misla. p. 88. Овој голем пораз бил придружен и со предавството на Мојсеј Големи, кој поминал на страната на Турците.
- Demetrio Franco p. 318.
- Scanderbeg: From Ottoman Captive to Albanian Hero by Harry Hodgkinson, page 134
- Fan Stylian Noli, 1947
- Scanderbeg: A Modern Hero by Gennaro Francione, page 119
- Scanderbeg: From Ottoman Captive to Albanian Hero by Harry Hodgkinson, page 136