Decebalus, known in Ancient Greek as Δεκέβαλος, was the last king of Dacia, reigning from eighty-seven to one hundred six AD. His rule was marked by a fierce resistance against the encroaching power of the Roman Empire, particularly during the reigns of emperors Domitian and Trajan. Decebalus initially achieved notable victories, including a successful defense against a Roman invasion that allowed him to consolidate his power and maintain a period of independence.
However, the ascension of Trajan heralded a new era of conflict. The Roman armies invaded Dacia, aiming to diminish the threat posed to the border territories of Moesia. Despite his valiant efforts, Decebalus faced defeat in one hundred two AD. This period was further complicated by the abduction of his sister, who was forcibly married into Roman nobility, leading some historians to speculate about her descendants, including the usurper Regalianus.
Even after his defeat, Decebalus continued to assert his independence as a client king. His defiance ultimately led to a catastrophic Roman invasion in one hundred five AD, culminating in the destruction of the Dacian capital, Sarmizegetusa, in one hundred six AD. Faced with the inevitability of capture, Decebalus chose to end his life by suicide, cutting his own throat, thus sealing his legacy as a symbol of resistance against Roman domination.