The origin of the surname Hidalgo is very old, with presence in different regions of Spain. Many Knights of this lineage fought against the Moors in the Reconquista, distinguished himself by his courage and bravery in combat.
It is known that their oldest plots of land lay in Limia (Galicia). Some of his knights after the fall of Granada settled in these lands and this is the origin of the surname in Andalucia.

The surname Hidalgo is complete, sometimes with other names: Hidalgo de Cisneros Hidalgo de Aguero, Hidalgo del Parral, etc..

The surname Hidalgo is represented in the Military Order of Santiago Calatrava and Montesa.

Prominent members of the lineage Hidalgo

Alberto Hidalgo: Poeta Peruano.
Bartolomé Hidalgo: Uruguayan poet, one of the forerunners of the gaucho genre.
Miguel Hidalgo y Costilla: Patriot and Mexican priest.
Baltasar Hidalgo de Cisneros: Spanish soldier and politician.

Hidalgo's name, is represented in Hispanic America, including Mexico. A state of this country has the name of Hidalgo, from the year 1869 in the Mexican congress and termed it as a tribute to Miguel Hidalgo.