Arrian

“ These men despatched ambassadors to Alexander, promising to surrender the place to him, if succour did not reach them by a day which had been agreed upon with them, naming the day. [3] This arrangement seemed to Alexander more advantageous than to besiege the fortified rock, which was inaccessible on all sides to attack. At Celaenae he left a garrison of 1,500 soldiers. Remaining here ten days, he appointed Antigonus, son of Philip, [4] viceroy of Phrygia, placed Balacrus, son of Amyntas [5] as general over the Grecian allies in place of Antigonus, and then directed his march to Gordium. ”

“ The newly-married men also, who had been despatched to Macedonia, now arrived at Gordium, and with them another army which had been levied, and put under the command of Ptolemy, son of Seleucus, [7] Coenus, son of Polemocrates, and Meleager, son of Neoptolemus. This army consisted of 3,000 Macedonian foot-soldiers and 300 horse-soldiers, 200 Thessalian cavalry, and 150 Eleans under the command of Alcias the Elean. ”