The growing interest in the history of Indonesia has made it desirable to have an English summary of the principal works of the Dutch historian Dr H. J. de Graaf, who in several books and articles published between 1935 and 1973 has given a description of the development of the Javanese kingdom of Mataram, based both on European and in digenous material. His works form a substantial contribution to the study of the national history of Indonesia. The Summary contains references to the paragraphs of the Dutch books and articles. This makes it easy for those readers who have a know ledge of Dutch to consult the original texts. The List of Sources for the study of Javanese history from 1500 to 1700 is composed of the lists in the summarized books and articles, and the Index of Names refers not only to the present Summary but also to the eight original texts. Many names of persons and localities in the Index have been provided with short explanatory notes and references to other lemmata as a quick way to give some provisional information on Javanese history.