and eventually captured the capital. Afterwards, in a reprisal for 25 days of hunger and of laboring over the siegeworks required to breach Avaricum's defenses, the Romans slaughtered nearly the entire population, some 40,000 people, leaving only about 800 alive. Battle of Gergovia The next major battle was at Gergovia, capital city of the Arverni. During the battle, Vercingetorix and his warriors crushed Caesar's legions and allies, inflicting heavy losses. Vercingetorix then decided to follow Caesar but suffered heavy losses (as did the Romans and their allies) during a cavalry battle and he retreated and moved to another stronghold, Alesia. Battle of Alesia In the Battle of Alesia in September 52 BC, Caesar built a fortification around the city to besiege it. However, Vercingetorix had summoned his Gallic allies to attack the besieging Romans. These forces included an army of Arverni led by Vercingetorix's cousin Vercassivellaunos and an army of 10,000 Lemovices led by Sedullos. With the Roman circumvallation surrounded by the rest of Gaul, Caesar built another outward-facing fortification (a contravallation) against the expected relief armies, resulting in a doughnut-shaped fortification. The Gallic relief came in insufficient numbers: estimates range from 80,000 to 250,000 soldiers. Vercingetorix, the tactical leader, was cut off from them on the inside, and without his guidance the attacks were initially unsuccessful. However, the attacks did reveal a weak point in the fortifications and the combined forces on the inside and the outside almost made a breakthrough. Only when Caesar personally led the last reserves into battle did he finally manage to prevail. This was a decisive battle in the creation of the Roman Empire. According to Plutarch, Caes. 27.8-10, Vercingetorix surrendered in a dramatic fashion, riding his beautifully adorned horse out of Alesia and around Caesar's camp before dismounting in front of Caesar, stripping himself of his armor and sitting down at his opponent's feet, where he remained motionless until he was taken away. Caesar provides a first-hand contradiction of this account, De Bell. Gal. 7.89, describing Vercingetorix's surrender much more modestly. Imprisonment and death Vercingetorix was imprisoned in the Tullianum in Rome for almost six years before being publicly displayed in the first of Caesar's four triumphs in 46 BC. He was ceremonially strangled at the Temple of Jupiter Optimus Maximus after the triumph. A plaque in the Tullianum indicates that he was beheaded in 49 BC. Legacy Memorials Napoleon III erected a