Theodahad

Theodahad, also known as Thiudahad (; 480 – December 536), initially ruled the Ostrogothic Kingdom jointly with his cousin Amalasuintha. She elevated him to co-monarch in late 534, following the death of her son, King Athalaric, likely seeking male support to legitimize her regency. However, seeking sole power, Theodahad betrayed Amalasuintha; he had her imprisoned and subsequently murdered around April 30, 535. His tenure as sole ruler proved short and tumultuous, ending with his deposition and death in December 536 while fleeing the forces of his successor, Witiges.

Theodahad's reign stands in stark contrast to the long and relatively stable rule of his uncle, Theodoric the Great, the kingdom's founder. Drawing on contemporary accounts (such as those by Procopius) and subsequent historical analysis, Theodahad's leadership is widely assessed as a disastrous failure. Key factors contributing to this view include his treacherous usurpation and murder of Amalasuintha—an act which provided Byzantine Emperor Justinian I with a direct pretext (casus belli) to launch the Gothic War—and his widely documented avarice, unpopularity with the Gothic nobility, and ineffective military leadership against the initial Byzantine invasion led by Belisarius. His failures ultimately precipitated a conflict that devastated Italy and led to the kingdom's destruction.