Ancus Marcius

After the death of Tullus Hostilius, Ancus Marcius was elected as the fourth king of Rome and ruled for 25 years. On his mother's side, Ancus was the grandson of Numa Pompilius.

Ancus was said to have built the port city of Ostia, at the mouth of the Tiber River. Ancus was also said to have built the bridge across the Tiber and extended Rome's boundary to include the Janiculum Hill.

In foreign policy, Ancus also conquered several Latin towns.

At Ancus' death, he was succeeded by Lucius Tarquinius Priscus. Ancus' two sons were jealous that an Etruscan foreigner became king at the end of Tarquin's reign; they hired assassins to kill Lucius Tarquinius Priscus.