Hidalgo
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
or HIJODALGO. In Spanish law. He who, by blood and lineage, belongs to a distinguished family, or is noble by descent.
Las Pairtidas, 2. 12. 3.
The origin of this word has given rise to much controversy; for which, see Escriche.