Santiago del Arrabal was built in 1245-1248 at the orders of Sancho II on the site of an older church and a mosque that is known to have been used since 1125. Many characteristics of the mosque have remained in the present building which is built in the Mudéjar architectural style. The church is named after Saint James (Santiago) of the outskirts (Arrabal). The patrons of the church during its foundation were members of the Diosdado family, knight commanders of the Order of Santiago.
References:The Villa d'Este is a 16th-century villa in Tivoli, near Rome, famous for its terraced hillside Italian Renaissance garden and especially for its profusion of fountains: the extraordinary system contains fifty-one fountains and nymphaeums, 398 spouts, 364 water jets, 64 waterfalls, and 220 basins, fed by 875 meters of canals, channels and cascades, and all working entirely by the force of gravity, without pumps. It is now an Italian state museum, and is listed as a UNESCO world heritage site.
Tivoli had been a popular summer residence since ancient Roman times due to its altitude, cooler temperatures and its proximity to the Villa Hadriana, the summer residence of the Emperor Hadrian I.
The Villa was commissioned by Cardinal Ippolito II d'Este (1509-1572), second son of Alfonso I d'Este, the Duke of Ferrara and grandson of Pope Alexander VI, along with Lucrezia Borgia.