Tarikh (al-Tabari) 4180
Then the year 351 AH began
وَفِيهَا أَيْضًا فَتَحَ الرُّومُ حِصْنَ دُلُوكَ وَثَلَاثَةَ حُصُونٍ مُجَاوِرَةٍ لَهُ بِالسَّيْفِ.
Translation
✧ In it also the Byzantines conquered the fortress of Dulūk and three fortresses adjacent to it by the sword.
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