The white grape variety originates from Spain. Synonyms grouped alphabetically by country are Pedro Gimenez Rio Colorado (Argentina); Pedro (Australia); Pedro Jimenez (Chile); Perrum (Portugal); Don Bueno, Pedro Ximenes, Pero Ximén, PX, Ximen, Ximenecia, Ximénez, Ximenecia and Zalema Colchicina,(Spain); Uva Pedro Ximénez, Uva Pero Ximénez , Verdello (Canary Islands/Spain). Despite seeming synonyms or morphological or name similarities, it should not be confused with the varieties Elbling, Galego Dourado (False Pedro), Pedro Giménez or Riesling. According to DNA analyses carried out in 2007, it is a direct descendant of the leading variety Hebén (Gibi); the second parent is unknown. The Pedro Ximénez Seedless variety is a seedless mutation. Pedro Ximénez was a crossing partner of the five new varieties Caballete, Cantaro (2), Muscat du Moulin, Pajolera and Valvin Muscat.