laden with booty and captives, among them many of senatorial rank. Battle of Abritus In the meantime, Decius had returned with his re-organized army, accompanied by his son Herennius Etruscus and the general Trebonianus Gallus, intending to defeat the invaders and recover the booty. The final engagement, the battle of Abritus, in which the Goths fought with the courage of despair, under the command of Cniva, took place during the second week of June 251 on swampy ground in the Ludogorie (region in northeastern Bulgaria which merges with Dobruja plateau and the Danube Plain to the north) near the small settlement of Abritus or Forum Terebronii (modern Razgrad). Jordanes records that Decius' son Herennius Etruscus was killed by an arrow early in the battle, and to cheer his men Decius exclaimed, "Let no one mourn; the death of one soldier is not a great loss to the republic." Nevertheless, Decius' army was entangled in the swamp and annihilated in this battle, while he himself was killed on the field of battle. As the historian Aurelius Victor relates: One literary tradition claims that Decius was betrayed by his successor, Trebonianus Gallus, who was involved in a secret alliance with the Goths, but this cannot be substantiated and was most likely a later invention since Gallus felt compelled to adopt Decius' younger son, Gaius Valens Hostilianus, as joint emperor even though the latter was too young to rule in his own right. It is also unlikely that the shattered Roman legions would proclaim as emperor a traitor who was responsible for the loss of so many soldiers from their ranks. Decius was the first Roman emperor to die in battle against a foreign enemy. Legacy The Decian persecution was the first organized persecution of Christians in the Roman Empire and served as the basis for the Diocletianic Persecution, the last major persecution of Christians in the Empire. The later legend of the Seven Sleepers, about seven Christian youths from Ephesus who fled the Decian persecution by hiding in a cave (walled up by Decius) and sleeping for almost 200 years, emerged in the Middle Ages. The Quranic account, captured in Al-Kahf ("The Cave") surah (chapter)., has led to the Persian saying of ahd-e daqyānus ("age of Decius") or daqyānus referring to ancient times or a person with outdated views. When something is old and outdated, people say, "this belongs to the age