Latin dedications from the year 235 in Hatra's ruins suggest there was presence of Roman army in the city in that period.

[1] Modern sources put the date of Hatra's fall in 240–241 AD (or April 241 AD) per the newly discovered document Cologne Mani Codex (18.2-8), which is the year that Ardashir I crowned his son Shapur I as the co-regent.

[4][1] In 363, Ammianus Marcellinus passed by Hatra together with the Roman army and has described it as an "old city situated in an uninhabited area and deserted for a long time past".

[1] The fall of Hatra is described in medieval Arabic and Persian traditions via stories that mix facts and fiction.

The legend tells of the Hatrene princess al-Nadirah who betrayed the city to Shapur I after falling in love with him.