Servius Tullius
Sixth king of Rome (traditionally 578-535 BCE). He introduced the census, organised citizens into property-based classes, established the centuriate assembly (Rome's first constitutional body), and built the Servian Wall. His constitutional innovations were inherited intact by the Republic. His origins were debated even in antiquity — the Roman tradition made him a slave who rose to kingship.
- Lived: 620 BCE – 535 BCE
- Nationality: roman
- Roles: king, lawgiver, reformer
