The Roman Catholic Archdiocese of Arequipa is an archdiocese located in the city of Arequipa in Peru.It was erected by Pope Gregory XIII on 15 April 1577 at the request of King Phillip II of Spain.This is the date in which the city was founded by Garcà Manuel de Carbajal. The cathedral started construction on this very date. In the "Act of Foundation" of Arequipa