[6] In 215 BC, Hiero's grandson, Hieronymus, came to the throne on his grandfather's death and Syracuse fell under the influence of an anti-Roman faction, including two of his uncles, amongst the Syracusan elite.
These included the sambuca, a floating siege tower with grappling hooks, as well as ship-mounted scaling ladders that were lowered with pulleys onto the city walls.
These measures, along with the fire from ballistas and onagers mounted on the city walls, frustrated the Romans and forced them to attempt costly direct assaults.
The Carthaginians realised the potential hindrance a continuing Syracusan defence could cause to the Roman war effort and attempted to relieve the city from the besiegers but were driven back.
[7] The Romans now controlled the outer city but the remainder of the population of Syracuse had quickly fallen back to the fortified inner citadel, offering continued resistance.
After a lengthy eight-month siege which brought great hardship onto the defenders through hunger, and with parleys in progress, an Iberian captain named Moeriscus, one of the three prefects of Achradina, decided to save his own life by letting the Romans in near the Fountains of Arethusa.
The taking of Syracuse ensured that the Carthaginians could not get a foothold in Sicily, which could have led to them giving support to Hannibal's Italian campaign, and this allowed the Romans to concentrate on waging the war in Spain and Italy.