Publius Decius Mus, the name of three celebrated Roman plebeian consuls, father, son, and grandson. The first distinguished himself, in the year 343 B. 0., in the war against the Sam-nites, and commanded in 340, with his colleague Titus Manlius Torquatus, against the Latins, who were then trying to shake off the yoke of the Romans. Before a decisive battle, it is said, both consuls had a vision informing them that the infernal gods required one of the contending armies and the opposing commander to be devoted to them. The consuls agreed that he whose wing should first waver should devote himself and his enemies to death. The wing under Decius gave way; he immediately caused the pontifex maximus to perforin the consecrating rites, wrapped himself in his robe, rode into the thickest of the enemy, and perished. His legions rushed on anew, and were victorious. His son did likewise in the battle of Sentinum (295), where he was opposed to the Gauls. Similar heroism is attributed to the grandson in a campaign against Pyrrhus and the Tarentines (279), but he survived.