Basilica di Santo Stefano Maggiore was established in the 5th century. Originally dedicated to both Saint Zechariah and Saint Stephen, it was later dedicated to Saint Stephen only. Throughout its history, has undergone several reconstructions, expansion and restoration.
The original church building was built around the year 417 on the initiative of the future bishop Martinianus. It was destroyed by fire in 1070 and it was rebuilt in romanesque style in 1075.
On 26 December 1476 it was the site of the assassination of Duke Galeazzo Maria Sforza, who had come to the basilica for the celebration of the patron saint. On 30 September 1571 in Santo Stefano was baptized the painter Michelangelo Merisi, better known as Caravaggio.
Since 1594 the church underwent a series of interventions, including enlargement of the apse and of the main altar in the early 17th century.
The church preserved the bodies of saints Martinianus, Ausanus and Mansuetus, archbishops of Milan, in 1988 translated to the Milan Cathedral. St. Charles Borromeo also translated here the bodies of saints Leo, Arsazius, Marinus, Mammes and Agapetus.
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.