Regidor

A regidor (plural: "regidores") is a member of a council of municipalities in Spain and Latin America. Portugal also used to have the same office of "regedor".
Mexico.
In Mexico, an ayuntamiento (municipal council) is composed of a municipal president (mayor), one or two "síndicos" (attorney general) and several regidores who meet in "cabildo" (council) sessions. A regidor is the community representative (commissioner) before the municipal government.
The responsibilities of a regidor are:
Some activities of a regidor are:
All municipalities of Aguascalientes have five regidores and one síndico, with the exception of the capital, which has ten regidores and two síndicos.