. "the name of a Roman gens. So M. Fonteius, a praetor in Gaul , in defence of whom Cicero delivered the oration still preserved in part . His sister Fonteia, a vestal" . "the name of a Roman gens. So M. Fonteius, a praetor in Gaul , in defence of whom Cicero delivered the oration still preserved in part . His sister Fonteia, a vestal" . .