Albert Hardenberg als Theologe deals with the significant role of the Dutch reformer Albert Hardenberg (ca. 1510-1574) in the process of reformed confessionalization in northern Germany, particularly in Bremen. Drawing upon a great many new sources, including more that 50 of Hardenberg's treatises and 340 letters, this volume presents both his biography and his theological position. Close scrutiny of his doctrinal relations with the Modern Devotion, Renaissance humanism and the Lutheran, Zwinglian and Reformed reformations throws a startling new light upon this scholar, long stereotyped as Crypto-Zwinglian, as well as upon Bucer, Melanchthon, Brenz, à Lasco, Bullinger, Erasmus and Calvin. This book provides new insight into the spread of reformed ideas to Cologne, Lower Saxony and East-Friesland.