The origins of the Shrine of Madonna della Ceriola date back around the mid-5th century when Saint Vigilio, bishop of Brescia, introduced Christianity into the Lake Iseo area, thereby abolishing the worship of the pagan goddess Isis and spreading the faith in Jesus Christ and the Virgin Mary.
Saint Vigilio built a small chapel on the top of the island and dedicated it to the Virgin Mary as a symbol of purification from pagan superstitions and of the new light of Christianity. This small church was the first parish church of the island and was called Santa Maria de curis, as shown in the list of possessions of the Diocese of Brescia, which dates back to 1410. It was also the first church of the lake to be dedicated to the Virgin Mary. Later it was named Madonna della Ceriola, probably after the image of the Virgin (12th century) carved in a stump of cerro (Turkey oak). The Virgin was depicted seated on a throne, wearing a wide mantle and holding Baby Jesus.
Present-day building was fulfilled in the 16th century, but its inner part was modified the following century by the insertion of a new chancel. The bell tower was built in 1750.
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.