The building of the temple of the Capitoline Jupiter had been vowed by Tarquin, the son of Demaratus, when warring with the Sabines; Tarquinius Superbus, his son or grandson, built, but could not dedicate it, because he lost his kindom before it was quite finished. And now that it was completed with all its ornaments, Poplicola was ambitious to dedicate it; but the nobility envied him that honor, as, indeed, also, in some degree, those his prudence in making laws and conduct in wars entitled him to. Grudging him, at any rate, the addition of this, they urged Horatius to sue for the dedication and, whilst Poplicola was engaged in some military expedition, voted it to Horatius, and conducted him to the Capitol, as though, were Poplicola present, they could not have carried it. Yet, some write, Poplicola was by lot destined against his will to the expedition, the other to the dedication; and what happened in the performance seems to intimate some ground for this conjecture; for, upon the Ides of September, which happens about the full moon of the month Metagitnion, the people having assembled at the Capitol and silence being enjoined, Horatius, after the performance of other ceremonies, holding the doors, according to custom, was proceeding to pronounce the words of dedication, when Marcus, the brother of Poplicola, who had got a place on purpose beforehand near the door, observing his opportunity, cried, "O consul, thy son lies dead in the camp;" which made a great impression upon all others who heard it, yet in nowise discomposed Horatius, who returned merely the reply, "Cast the dead out whither you please; I am not a mourner;" and so completed the dedication. The news was not true, but Marcus thought the lie might avert him from his performance; but it argues him a man of wonderful self-possession, whether he at once saw through the cheat, or, believing it as true, showed no discomposure.