On May 31, A.D. 455, Emperor Petronius Maximus was stoned to death by an angry mob while fleeing Rome from a Vandal invasion that was, in fact, blowback from his own power politics. Thus ended his two-and-a-half month reign, which he had obtained by murder and bribery.
Petronius Maximus made at least one strategic mistake, attempting to strengthen his position by forcing Licinia Eudoxia, the previous emperor’s widow, to marry him — and forcing her daughter Eudocia to marry his son. This latter arrangement canceled Eudocia’s betrothal to the son of the Vandal king Genseric, infuriating both Eudocia and Genseric, who sent a fleet to Rome. Maximus failed to obtain troops from the Visigoths and he fled as the Vandals arrived. In the hubbub, he became detached from his retinue and bodyguard and was killed by fellow Romans.