Very little is known about Qalidurut; the first mention of the king comes from
Arab sources. After his victory against
Abdallah ibn Sa'd in the
Second Battle of Dongola he signed
Baqt to keep peace between Makuria and Rashidun Caliphate and it regulated Makuria's political and economic relations with the caliphate for the next 520 years. After the treaty was signed Qalidurut and his son Zacharias rebuilt a
Cathedral in Dongola destroyed during the war. He also built a cruciform building in the city in commemoration of the defenders of
Dongola. The city of Dongola experienced prosperity under their reign. ==References==