Cohors I Ulpia Galatarum

• Ulpia: Ulpian. The Imperial family name shows a link to the emperor Trajan (Marcus Ulpius Traianus).
• Galatarum: Galatians. At the time the unit was raised, the recruits came from the Roman province of Galatia.

Since there is no indication for milliaria and equitata, the unit was a Cohors quingenaria peditata with a nominal strength of 480 infantry (6 centuriae with 80 men each).

The unit was probably raised by Trajan in preparation for his Parthian campaign around 112/113.[1] It is attested on military diplomas for the province of Syria Palaestina issued in 136/137, 139, 142, 149/160, 158, 160 and 186.[1][2][3] In 238 it was at Aquileia in Italy, presumably as part of the exercitus Aquilensis.[1]

Possible garrisons were:[1]

• Aquileia: (AE 1934, 230)

The following personnel is attested on inscriptions:[1][2]

• Roman auxiliaries
• List of Roman auxiliary regiments

• Julian Bennett: THE REGULAR ROMAN AUXILIARY REGIMENTS FORMED FROM THE PROVINCES OF ASIA MINOR, ANATOLICA XXXVII, 2011, Pages 251-274, (PDF).
• John Spaul: Cohors² The evidence for and a short history of the auxiliary infantry units of the Imperial Roman Army, British Archaeological Reports 2000, BAR International Series (Book 841), ISBN 978-1841710464