The Thalkirche (Valley Church) of Sonnenberg dates to 1429, when Werner Hut, Lord of the Castle, endowed the chapel of Saint Mary in the Valley. In 1529, Johann von Nassau-Sporkenburg, heir to the Hut family, opened the former private chapel to the residents of Sonnenberg. The church was expanded in 1535 and became Protestant in 1540.
Due to damage incurred during the Thirty Years War in 1625, the church was unusable. Services were held in the Holy Cross Chapel in the Sonnenberg Cemetery for decades afterward. The church was looted by the soldiers of Brandenburg in 1672.
A gallery was added in 1733. In 1883, there was a thorough renovation of the church. The pulpit was moved to a position in the center above the altar, where it stands today.
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