The Roman 'Munera' - originally an Etruscan custom, was a series of gladiatorial combats, 'ad mortem' (to the death), staged after the funeral and cremation of a Roman aristocrat (patrician) - and intended to 'placate' the spirit (Manes) of the dead man through a sacrifice of blood - that being the blood of the gladiators who were killed. Roman gladiators fell into stock categories modelled on real-world precedents. Almost all of these classes were based on military antecedents; the retiarius ("net-fighter" or "net-man"), which was themed after the sea, was one exception. The inspiration behind this series is the Thracian Gladiator Spartacus, who led a slave uprising against the Roman Republic. The Thracians had been persuaded by Claudius Glaber to serve as auxiliaries in the Roman legions in a campaign against the Getae, who had often plundered Thracian lands.