For the record : How many times did Rome sack Ctesiphon ?

[SMC]

Julian came up to Ctesiphon but did not besiege it. AMMIANUS 24;6 + ZOSIMUS 3.25,5-7 + EXC.DE SENT 22 Ina battle near the city, the armies drew up in line opposite each other and the Byzantines charged. After a long battle the Persians started to withdraw and then made headlong for Ctesiphon. The Byzantines followed but their commander, Victor, wisely stopped them getting too close to the walls. According to Exc. De Sent 22 there were many supplies in the suburbs so presumably there were at least as many inside the city which would enable it to hold out against starvation tactics for a while.

One source for the Arab capture of the city in 637/8 is CHRON.1234.247