Sigwardskirche Idensen, Romanesque church in Idensen, Wunstorf, Germany

Sigwardskirche is a Romanesque church building constructed with carefully dressed sandstone blocks in a single-nave layout featuring three bays and a polygonal apse. The interior walls are decorated with medieval frescoes depicting biblical narratives.

Bishop Sigward of Minden commissioned this building between 1129 and 1134, using it as his summer residence before his burial there in 1140. The church marks an important early phase of Romanesque construction in the region.

The frescoes follow a typological programme based on the exegetical writings of Rupert of Deutz: from east to west, the Flood is paired with the Baptism, the Tower of Babel with Pentecost, and Sodom and Gomorrah with the Last Judgement. On the west wall, King Etzel orders the martyrdom of Saint Ursula and her 11,000 virgins, to whom the church is dedicated.

The building is open to visitors daily, though religious services should be avoided for an undisturbed visit. Wear sturdy shoes and bring a jacket, as the interior can be cool and the floor is uneven.

The oldest of the three bells dates from the church's construction period and is the oldest surviving bell in Lower Saxony; it still strikes every quarter hour. The other two were cast in 1724 and 1823. The tin baptismal font is dated 1675 and signed by Christophorus Ludovicus Fricke.