The gate's two arches seem to have been set at angles, and were known by separate names. It was unlucky to leave the city through the arch called Porta Scelerata ("Accursed Gate"), which was supposed to have been named for the military disaster at Cremera in 479 or 478 BC, since the 306 Fabii who died had departed through it. The Servian Walls, however, did not exist at that time. The accursed nature of the gate probably derives from the transport of corpses out of the city proper to funeral pyres on the Campus Martius. The family tomb of the Claudii was located outside the Porta Carmentalis.