Monreale (; ; Sicilian: Murriali) is a town and comune in the Metropolitan City of Palermo, in Sicily, southern Italy. It is located on the slope of Monte Caputo, overlooking the very fertile valley called "La Conca d'oro" (the Golden Shell), a production area of orange, olive and almond trees, the produce of which is exported in large quantities. The town, which has a population of approximately 39,000, is about inland (south) of Palermo, the regional capital. Monreale forms its own archdiocese and is home to Monreale Cathedral, a historical Norman-Byzantine cathedral, one of several buildings named in a UNESCO World Heritage Site, a group of nine inscribed as Arab-Norman Palermo and the Cathedral Churches of Cefalù and Monreale. History After the occupation of Palermo by the Arabs (the Emirate of Sicily), the Bishop of Palermo was forced to move his seat outside the capital. The role of a cathedral was assigned to a modest little church, Aghia Kiriaki, in a nearby village later known as Monreale. After the Norman conquest in 1072, Christians took back the former Palermo cathedral. Probably the village's role as a temporary ecclesiastical centre played a part in King William II's decision to build a cathedral here.<ref>Rodo Santoro: Palermo Cathedral,' Palermo: 1999, p. 7</ref> Monreale was a small village for a long time. When the Norman Kings of Sicily chose the area as their hunting resort, more people and commerce came to the area after the royalty built a palace (probably identifiable with the modern town hall). Under King William II, a large monastery of Benedictines coming from Cava de' Tirreni, with its church, was founded and provided with large assets. The new construction also had an important defensive function. Monreale was the seat of the metropolitan archbishop of Sicily, which from then on exerted a significant influence over Sicily. In the 19th century, underage marriages, or those performed without the blessing of the bride's parents, were known as "the marriages of Monreale", according to Eliza Lynn Linton. These referred to marriages performed in remote places, where the law was less observed. (see Gretna Green). Main sights The Cathedral The cathedral of Monreale is one of the greatest extant examples of Norman architecture. It was begun in 1174 by William II and completed four years later. In 1182 the church, dedicated to the Nativity of the Virgin Mary, was, by a bull of Pope Lucius