This book studies the connections between the political reform of the Holy Roman Empire and the German lands around 1500 and the sixteenth-century religious reformations, both Protestant and Catholic. It argues that the character of the political changes (dispersed sovereignty, local autonomy) prevented both a general reformation of the Church before 1520 and a national reformation thereafter. The resulting settlement maintained the public peace through politically structured religious communities (confessions), thereby avoiding further religious strife and fixing the confessions into the Empire's constitution. The Germans' emergence into the modern era as a people having two national religions was the reformation's principal legacy to modern Germany.

In this first biography in English for fifty years, Derek McKay avoids the limitation of seeing Frederick William primarily as precursor of the 'Enlightened' Frederick the Great. Instead, he roots him firmly in his own time, a dynastic, protestant ruler like many another in Germany, but gifted with the toughness and opportunism to overcome the hostility of his local nobilities and of the surrounding great powers.

'The Youth of the Great Elector' is a semi-fictional retelling of the life of George William, Elector of Brandenburg. He was Margrave and Elector of Brandenburg and Duke of Prussia from 1619 until his death. His reign was marked by ineffective governance during the Thirty Years' War. He was the father of Frederick William, the "Great Elector".