This book offers a unique approach to Calvin by introducing the individuals and groups who, through their opposition to Calvin's theology and politics, helped shape the reformer, his theology, and his historical and religious legacy. Respected church historian Gary Jenkins shows how Calvin had to defend or rethink his theology in light of his tormentors' challenges, giving readers a more nuanced view of Calvin's life and thought. The book highlights the central theological ideas of the Swiss Reformation and introduces figures and movements often excluded from standard texts.