The Collegiate church of Santa María la Mayor (Church of Saint Mary the Great) is one of the most characteristic examples of transitional Romanesque architecture in Spain, the church of Santa María la Mayor is inspired by the Cathedral of Zamora, in turn inspired by the Old Cathedral of Salamanca. The tower-dome is usually listed as one of the four most typical in León together with those in the cathedrals of Salamanca, Plasencia and Zamora.
It was begun around 1170, and was finished in the mid-13th century. Two different directors of the work have been identified, according to the different types of stone used (limestone in the old sections, sandstone in the most recent ones), and by the barrel vaults in the transept. The church is on the Latin cross plan, with a nave and two aisles, with a transept over whose crossing is the hexadecagonal dome. The transept ends with three semicircular apses.
Notable is the Majesty Portico (Pórtico de la Majestad), which houses the southern entrance. It was built in the reign of Sancho IV of Castile and León (1284–1295), and is decorated with polychrome sculptures depicting scenes of the life of the Virgin, Christ and the Final Judgement.
Also in the church are the Flemish painting La Virgen de la Mosca ('Virgin of the Fly') and an unusual sculpture of a Pregnant Virgin, dating to the 13th century. The painting of the Virgin of the Fly is especially unusual because of the realistic portrayal of a fly on the tunic which covers the Virgin's knee. Studies of the work demonstrate that this insect was added later. These same studies have pointed out numerous touchings-up in the original painting, such as the halo that surrounds the head of the Virgin, previously covered by a veil, or the rich embroidery on the dress of Saint Catherine of Alexandria, whose face has a great resemblance to some paintings of Isabella I of Castile.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).