The Capitoline Wolf is a bronze sculpture depicting a scene from the legend of the founding of Rome. The sculpture shows a she-wolf suckling the mythical twin founders of Rome, Romulus and Remus. According to the legend, when King Numitor, grandfather of the twins, was overthrown by his brother Amulius in Alba Longa, the usurper ordered them to be cast into the Tiber River. They were rescued by a she-wolf that cared for them until a herdsman, Faustulus, found and raised them. The age and origin of the Capitoline Wolf are controversial. The statue was long thought to be an Etruscan work of the fifth century BC, with the twins added in the late 15th century AD, probably by sculptor Antonio del Pollaiuolo. However, though radiocarbon and thermoluminescence dating suggested that the wolf portion of the statue may have been cast between 1021 and 1153