Markim is mentioned in written sources for the first time in 1287, but both etymological and archaeological evidence suggest that the cultural landscape surrounding the church is considerably older. The landscape had ancient traditions already during the Middle Ages, when the church was built. The church is situated on a small hill were an earlier, pagan sacrificial well was located. The area is rich in rune stones.
The church was built during the early 13th century; dendrochronological evidence point to that the roof was laid in about 1213. It remains a largely unaltered Romanesque building. A church porch was added during the 15th century, and during the same time the ceiling was vaulted. The external bell tower was built in wood in 1727. The windows of the church were also enlarged during the 18th century, and a round window in the apse inserted during the early 19th century. The tin roof is similarly from the 19th century.
Externally, the church retains much of its Romanesque appearance. Although painted yellow today, originally the roughly hewn stones of which the church was built were exposed. The original church door still remains. It dates from the 12th century and so is older than the church itself. Made of oak, it is decorated with metal hoops in different forms and shapes. The exterior of the church gives a good idea of what early Romanesque churches in the Nordic countries often looked like. It is also one of few early medieval churches in Uppland which has retained its original floor plan.
Inside, the church is whitewashed except for the church porch, where fragments of medieval frescos have been found and are now again displayed. Of the church furnishings, only the triumphal cross is medieval. It is of a type more commonly found on Gotland than in Uppland, and dates from the second half of the 13th century. The altar and pulpit, dominating the apse, are a work by the carpenter Magnus Granlund (1711-1779) from Stockholm, and Rococo in style. Granlund worked on several churches in Uppland. The organ facade is from the 1820s and in a provincial Empire style, while the organ itself was replaced in 1985. The baptismal font is a modern work, presented to the church in 1972.
The church has never had a tower but instead an external belfry. The presently visible belfry replaced an earlier of unknown age. It carries two church bells, one medieval and one made in 1727.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.