Possibly a Spanish form of the Late Latin name Sanctius
, which was derived from the word sanctus
meaning "saintly, holy". Alternatively, Sancho
may be derived from an older Iberian name. This was the name of a 9th-century saint
who was martyred by the Moors at Cordoba. It was also borne by several Spanish and Portuguese kings. Miguel de Cervantes used it in his novel 'Don Quixote' (1605), where it belongs to the squire of Don Quixote.