The origins of the temple in Kozłów may date back even to the 11th-12th centuries, and the first mention of a local parish comes from 1279. In a document of donation of the village of Stanica to the Cistercians of Rud Raciborski, there is a witness who is the parish priest of Kozłów, Fr. Heinrich von Koslov.
The remains of the original Romanesque church constitute the present chancel. This church was built of fieldstone. The preserved font in the church and the wall surrounding the temple probably also date from this time.
From the 15th century, the village of Kozłów belonged to the Koslowski family, when the church was rebuilt and enlarged. A gravestone plate of Peter Koslowski from 1618 has been preserved in the church wall. At the end of the 16th century, the church passed into the hands of Protestants, while Catholics held their services in the rectory. The church returned to Catholics only at the end of the 19th century, when it was in very poor technical condition and its demolition and construction of a new building were being considered. In 1924, a thorough renovation and expansion were carried out, and the new, enlarged church was consecrated in 1928.
The bell Urban found in the wooden (added in 1928) tower was probably cast in 1410, weighs about 600 kg and is considered one of the oldest bells in Upper Silesia.
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