Palatine Hill (Latin: Palatium) also named the Sun Hill was the hill that Rome was built on. Rome later extended to include the seven hills:
Part of the Imperial Palace complex on the Palatine Hill overlooking the Circus Maximus
According to Livy (59 BC – 17) the Palatine hill got its name from the Arcadian settlement of Pallantium. The term palace itself stems from Palatium.