For 10 points, name this twin brother of Remus, for whom the capital of Italy is named.
After a pitched battle, this figure slew the king of Caenina, Acron. This figure had a bodyguard named Celer who formed a posse called the Celeres who, as a group, guarded this figure. Also the creator of the Curitia, one story of his death has him disappear in a great storm, never to be seen again, although other sources have him rent limb from limb in a government building. This son of Rhea Silvia was fed by the woodpecker Picus during his infancy, a time at which he was also suckled by Lupa. Later deified as Quirius, this figure killed his brother after that brother lept over a wall to mock him. For 10 points, name this twin brother of Remus, for whom the capital of Italy is named.
After a pitched battle, this figure slew the king of Caenina, Acron.
Romulus