sentences:  One of those donations, made to the Bishopric of Astorga, was the so-called "Cruz de Peñalba" (Cross of Peñalba), a symbol of El Bierzo's comarca.This cross is an example of Visigothic gold work, influenced by Mozarabic models.The church is characterized by opposed apses, an unusual feature shared with the tenth-century church of San Cebrián de Mazote (also constructed during the apogee of the Kingdom of León).