The Colegiata de Nuestra Señora de la Asunción was built in the sixteenth century in the town of Osuna. It was founded by Juan Téllez-Girón, 4th Count of Ureña.
The interior has a nave and two aisles, five chapels and a presbytery. The interior of the church has a rich Renaissance decoration. It has a beautiful Baroque main altar, made throughout the eighteenth century, and the chapels on the sides are all very attractive. In the interior, the huge sacristy is now a museum that exhibits a magnificent collection with five paintings by José de Ribera (El Españoleto) and a carving by Juan de Mesa.
There is a Pantheon of the Dukes on a lower level that was built in Plateresque style in 1545 and contains a small chapel with an altarpiece attributed to Roque Balduque, a paint of Hernando de Esturmio, and the tombs of the Dukes of Osuna.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.