Skällviks kyrka

The church's location was never simply parochial. It lies near the ruined medieval castle of Skällviks borg and the later Stegeborg stronghold, seat of powerful figures including King Johan III, who was born nearby, and successive royal and noble families. This proximity to wealth and power shaped a building far grander than an ordinary rural parish church.

Originally built as a plain rectangular hall church with a straight-ended chancel, of stone and brick, the church was transformed between 1590 and 1593 on Johan III's initiative. The upper walls were lowered, a central tower raised on four pillars, and the plan reshaped into a genuine central-church form with four short transepts, cross vaulting, and corner chapels housing burial vaults. Some sources suggest the design may echo Italian Renaissance models associated with the architect Leon Battista Alberti, though the exact inspiration remains uncertain; it is thought Johan III may have owned Alberti's treatise on architecture. The result is sometimes described as Sweden's oldest central church, a form that only became common in larger town churches from the mid-1600s.

By the mid-twentieth century the building was in poor repair, troubled by subsidence and cracking, and services had at times moved to the local schoolhouse for want of heating. A major restoration in 1955–56, led by architect Erik Lundberg, aimed to stabilise the structure and recover its Renaissance character: windows were reopened, thick plaster replaced with thin limewash, and copper replaced older roof coverings. Workers discovered that the tower's foundations rested directly on the crossing vault, prompting alarmed local newspaper headlines at the time. Structural cracking has continued to be a concern into recent decades.

Among the furnishings is a carved wooden knob set into the crossing vault, said to come from the former chapel at Stegeborg castle, along with a font traditionally linked to the same chapel and dated by inscription to 1607. A medieval carved altar cabinet, or helgonskåp, with painted doors survived later overpainting; restoration in 1956 revealed earlier medieval underpainting beneath a naturalistic layer added around 1905. A gilded silver bridal crown from the late 1500s is traditionally associated with Johan III's family, though this attribution rests on local tradition rather than firm documentation.

The church also holds a small mid-eighteenth-century organ built in 1762 by Jonas Wistenius of Linköping, one of only a handful of his instruments to survive, later modified and then restored in the 1960s to something closer to its original form.