This monograph offers a comprehensive reassessment of the dominant German grammarian of the 17th century J.G. Schottelius, and examines his legacy both in Germany and Europe. Offers comprehensive documentation of Schottelius’s numerous sources to show the range and limits of scholarly knowledge in 17th-century Germany Introduces new data that provides insight into whether a grammarian like Schottelius could have any impact on how people actually wrote Provides an accessible reading of Schottelius’s landmark study (with quotations translated into English) that does not assume prior knowledge of the seventeenth-century German context Traces Schottelius’s influence on Dutch, Danish, Swedish, and Russian grammar