Jaakko Ilkka (1545-1597) was a Finnish yeoman and trader. He is remembered for leading the Cudgel War, a peasant uprising in the kingdom of Sweden against exploitation by nobility and military. At its end, and the peasants' defeat on January 1–2, 1597, Ilkka escaped, but was soon recaptured and executed for his part in the fighting. Jaakko Ilkka was executed in Kyrönjoki and his body was brought near Ilmajoki church to slate and people to see. According to other story Ilkka was executed in the place where Ilkka Statue was erected in 1924.
Reference: Wikipedia
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.