In what year was the cathedral, that Arnao de Vergara produced several windows for, registered as a World Heritage Site?
Arnao de Vergara Arnao de Vergara was a 16th-century Spanish master glassmaker. Between 1525 and 1536 he produced several windows for Seville Cathedral, many of which survive, before later moving to Granada.
Tarragona Cathedral The Cathedral of Tarragona is a Roman Catholic church in Tarragona, Catalonia, Spain. The edifice is located in a site previously occupied by a Roman temple dating to the time of Tiberius, a Visigothic cathedral, and a Moorish mosque. It was declared a national monument in 1905.