The doors of the temple to Janus were opened during times of war in this city, whose founder killed his brother for jumping over its walls.
In one story, an early ruler of this city made eleven copies of a prophecy-inscribed shield that fell from the sky. This city was home to the Sibylline Books. Amulius overthrew the grandfather of one of this city's founders, leading that man to be brought up as a shepherd by Faustulus. Twelve vultures appeared over its Palatine Hill during this city's founding. The doors of the temple to Janus were opened during times of war in this city, whose founder killed his brother for jumping over its walls. For 10 points, name this city, founded by Romulus after killing Remus.
In one story, an early ruler of this city made eleven copies of a prophecy-inscribed shield that fell from the sky.
Rome [or Roma]