This companion brings together a team of contemporary theologians and writers to provide substantial introductions to the key people who shaped the Christian story and tradition.A substantial reference work, bringing together over 75 entries on the most important and influential theologians in the history of ChristianityStructured accessibly around five periods: early centuries, middle ages, reformation period, the Enlightenment, and the twentieth-century to the presentA to Z entries range from substantial essays to shorter overviews, each of which locates