Complex sentence: Abbot Krato, who held office in 1517, was however in sympathy with Lutheranism and swore allegiance to the Lutheran Philip, Landgrave of Hesse, in 1525.
Split into simpler sentences: Abbot Krato, who held office in 1517, was however in sympathy with Lutheranism. Krato swore allegiance to the Lutheran Philip, Landgrave of Hesse, in 1525.