Carpi (people)
The Carpi or Carpiani were an ancient people that resided in the eastern parts of modern Romania in the historical region of Moldavia from no later than c. AD 140 and until at least AD 318.
The ethnic affiliation of the Carpi remains disputed, as there is no direct evidence in the surviving ancient literary sources. A strong body of modern scholarly opinion considers that the Carpi were a tribe of the Dacian nation. Other scholars have linked the Carpi to a variety of ethnic groups, including Sarmatians, Thracians, Slavs, Germans, and Celts.
About a century after their earliest mention by Ptolemy, during which time their relations with Rome appear to have been peaceful, the Carpi emerged in c. 238 as among Rome's most persistent enemies. In the period AD 250-270, the Carpi were an important component of a loose coalition of transdanubian barbarian tribes that also included Germanic and Sarmatian elements. These were responsible for a series of large and devastating invasions of the Balkan regions of the empire which nearly caused its disintegration in the "Crisis of the Third Century".