Caspar Olevianus

German clergyman

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June 17, 2026

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Caspar Olevianus was a German clergyman and theologian who played a significant role in the Protestant Reformation. He is best known for his collaboration with John Calvin and his contributions to Calvinist theology. Olevianus co-authored the Heidelberg Catechism, a foundational document for Reformed churches, which aimed to provide a clear and comprehensive summary of Christian doctrine. His theological work emphasized God's sovereignty and the importance of faith and good works. Olevianus's influence extended to the organization and governance of Reformed churches, advocating for a structured church order that balanced congregational participation with pastoral leadership.12

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Heidelberg Catechism
…written in 1562 primarily by Caspar Olevianus, the superintendent of the Palatinate church, and Zacharias Ursinus, a professor of the theological faculty of the University of Heidelberg. It was accepted at the annual synod of the Palatinate church in 1563.
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…written in 1562 primarily by Caspar Olevianus, the superintendent of the Palatinate church, and Zacharias Ursinus, a professor of the theological faculty of the University of Heidelberg. It was accepted at the annual synod of the Palatinate church in 1563.
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