Editing Roman Kingdom (section)

===Servius Tullius===
[[File:Las cuatro regiones de Roma.gif|thumb|upright=1.35|A map of the City of the Four Regions, roughly corresponding to the city limits during the later kingdom. The division is traditionally, though probably incorrectly, attributed to [[Roman Kingdom#Servius Tullius|Servius Tullius]]. The [[seven hills of Rome]] are shown in green, with Latin names.]]
Priscus was succeeded by his son-in-law [[Servius Tullius]], Rome's second king of Etruscan birth, and the son of a slave. Like his father-in-law, Servius fought successful wars against the Etruscans. He used the booty to build the first wall all around the Seven Hills of Rome, the ''[[pomerium]]''. He also reorganized the army.

Servius Tullius instituted a new constitution, further developing the [[Social class in ancient Rome|citizen classes]]. He instituted Rome's first [[census]], which divided the population into five economic classes, and formed the [[Roman assemblies|Centuriate Assembly]]. He used the census to divide the population into four urban tribes based on location, thus establishing the [[Roman assemblies|Tribal Assembly]]. He also oversaw the construction of the [[Temple of Diana (Rome)|Temple of Diana]] on the [[Aventine Hill]].

Servius' reforms made a big change in Roman life: voting rights based on socio-economic status, favouring elites. However, over time, Servius increasingly favoured the poor in order to gain support from [[plebeians]], often at the expense of patricians. After a 44-year reign,<ref name=":06"/> Servius was killed in a conspiracy by his daughter [[Tullia Minor|Tullia]] and her husband [[Lucius Tarquinius Superbus]].<ref>Matyszak 2003, pp. 38–39.</ref>