From Wikipedia - Reading time: 4 min
Nueva Extremadura means "New Extremadura" in Spanish, and originates from Extremadura, Spain.
Nueva Extremadura could refer to
Until about 1722 Nueva Extremadura covered areas north of the Nueces River east of the Medina River. In 1722 New Philippines was established east of the Medina River. Effective Spanish control in this region had only been established in about 1722 and only actually existed from about 1718 and mainly in the general vicinity of San Antonio. So Nueva Extremadura did include some areas in what is now Texas.
Nueva Extremadura, a region penetrated in the sixteenth century and claimed by rival provinces—Nuevo Leon to its east and Nueva Vizcaya to its south and west—was a vaguely defined territory even after it was declared a separate gobierno in 1687- Read online at DeGruyter. Access date: 6 May 2022