Nueva Extremadura

• a large jurisdiction in the north of New Spain, bordered in the 17th century to its west and south by Nueva Vizcaya, by Nuevo León to its southeast; by Nuevo Santander to its east, and, to its northeast, by Louisiana. After 1722, its northeastern border was the New Philippines. Today many identify the state of Coahuila in Mexico with the former Nueva Extremadura, but the present state's borders are not the same. For example, Nueva Vizcaya occupied the southwest of present-day Coahuila; Nuevo León, the neighbor to the east, also had claims to eastern New Extremaduran lands; the border with the New Philippines was at the Medina river. From 1687, the territory's official name was Provincia de San Francisco de Coahuila y Nueva Extremadura.
• the name originally given to Chile by Pedro de Valdivia. Its capital was then known as Santiago de Nueva Extremadura.