 Averroes (Ibn Rushd, 1126–1198) is usually regarded to have been the major “master” of Islamic philosophy among Jews in the Late Middle Ages – although he might have had to share this key position with Avicenna and al-Ghazali. Almost all his philosophical works were translated from Arabic into Hebrew in the period 1230–1330, sometimes even more than once (only one of them was later translated from Latin into Hebrew, around 1480); almost all of them were quoted, summarized, paraphrased, annotated and commented on by a number of philosophers during the 14th and 15th centuries. As a matter of fact, some of these texts are preserved only through these translations, due to the loss of their original versions, and their success among Jewish philosophers was surely wider than the success they gained among Arabic thinkers, and probably equal to the success they gained among Latin Christian ones. A real history of “Jewish Averroism” has not yet been written, so that most information about it can be found in Steinschneider’s book about Medieval Jewish translations (Steinschneider 1893, 49–339).