Servius Tullius was the sixth king of Rome during the regal period, and his origins are steeped in mystery. He was the son of a Latin noblewoman named Ocrisia, born amidst the conflict between Rome and the Latin cities. After being captured, Ocrisia served King Tarquin the Elder in the palace, where she gave birth to Servius. An unusual phenomenon occurred at his birth when flames suddenly appeared on his forehead, which endeared him to the king and queen, allowing him to join the ranks of the nobility. However, the king's sons were displeased with this arrangement and conspired to assassinate their father, ultimately succeeding. The queen then devised a scheme to have Servius ascend to the throne, gradually solidifying her own power.

Upon his accession, Servius implemented a series of reforms. He categorized Roman citizens into five classes based on their wealth and abolished the Comitia Curiata, transferring decision-making to the Comitia Centuriata. He also established a new tribal structure, facilitating Rome's transition to a more organized state system. Additionally, Servius granted citizenship to many foreign immigrants, constructed city walls, promoted religious activities, and expanded Rome's influence.

There are differing accounts regarding Servius's identity throughout history. Some believe he was Latin, while others argue he was an Idalian named Mastarna. This controversy remains unresolved, but Servius's historical significance as a Roman king is undeniable.