The Battle of Abritus, also known as the Battle of Forum Terebronii, occurred near Abritus (modern Razgrad) in the Roman province of Moesia Inferior in the summer of 251. It was fought between the Romans and a federation of Gothic and Scythian tribesmen under the Gothic king Cniva. The Roman army of three legions was soundly defeated, and Roman emperors Decius and his son Herennius Etruscus were both killed in battle. They became the first Roman emperors to be killed by a foreign enemy.