Decebalus

Decebalus (; ), sometimes referred to as Diurpaneus, was the last Dacian king. He is known for fighting three wars, with varying success, against the Roman Empire under two emperors. After raiding south across the Danube, he defeated a Roman invasion in the reign of Domitian, securing a period of independence during which Decebalus consolidated his rule.

When Trajan came to power, his armies invaded Dacia to weaken its threat to the Roman border territories of Moesia. Decebalus was defeated in 102 AD, and his own sister was abducted within this timeframe and forcibly wed into Roman nobility, causing some historians to infer that she was the ancestress of the usurper, Regalianus, who claimed to be a kinsman of Decebalus. He remained in power as a client king, but continued to assert his independence, leading to a final and overwhelming Roman invasion north of the Danube in 105 AD. Trajan reduced the Dacian capital Sarmizegetusa to ruins in 106 AD, absorbing some of Dacia into the Empire. Decebalus died by suicide via cutting his own throat to avoid capture.