This book documents the lectures given at a conference in the Max-Planck-Institut für europäische Rechtsgeschichte in Frankfurt on the occasion of Michael Stolleis's sixty-fifth anniversary in July 2006. It is well known that in nineteenth-century Germany most university professors were Protestants. Between 1800 and 1970 only one-third of the 702 chairs in history in Germany, Switzerland and Austria were occupied by Roman Catholics. Before 1840 nearly 100 per cent of all history professors were Protestants (cf. Olaf Blaschke, p. 19). Among law professors, lawyers and judges Protestants were also over-represented. These facts pose a question: were there any consequences for legal doctrines and practice in the nineteenth and twentieth centuries? This volume tries to answer the question by looking at public and constitutional law (Stefan Korioth), family and marriage law (Peter Derleder and Dieter Schwab), concepts of natural law (Merio Scattola), international law and the methodology of legal work (Hans-Peter Haferkamp and Joachim Rückert). There are also two contributions which discuss the problem of distinguishing denominational doctrines and their presence in the biography of lawyers and law professors in this period (Olaf Blaschke and Volkhard Krech). The results are ambivalent. On the one hand there can be no doubt of the presence of religion or the importance of a notion of marriage and state, which is influenced by Protestantism. On the other hand we see there being a significant autonomy in law which relativises denominational differences.