Nuevo Santander

Nuevo Santander (New Santander) was a region of the Viceroyalty of New Spain, covering the modern Mexican state of Tamaulipas and extending into modern-day southern Texas in the United States.

Nuevo Santander was named after Santander, Cantabria, Spain, and settled by Spanish American colonists in a concerted settlement campaign peaking in 1748–1750. It fell under the jurisdiction of the Real Audiencia of Guadalajara in judicial matters, and in 1776, Nuevo Santander became part of the semi-autonomous Provincias Internas.

José de Escandón founded the colony in 1747. In 1755, Jiménez was founded, which became the major town and capital of the colony. The state was subsequently renamed to Tamaulipas once Mexico gained its independence in 1821.