Probably the closest equivalent would be Gaius Marius, who defeated the Numidian king Jugurtha (played by Peter Mensah in "Gladiator II") and returned from Africa Nova in triumph, but Marius died ...

Gladiator 2 has a very high body count with barely any ... Then another of those close to him dies when Jugurtha lets himself be killed by the baboons rather than go to Rome.