R. J. Zwi Werblowsky

Isaac ben Jacob ha-Cohen (second half of 13th century) was a Spanish-born Jewish kabbalist. With his younger brother Jacob he traveled Spain and Provence in search for ancient kabbalistic traditions, which they gathered and incorporated into their writings. Isaac held a prominent position within the Gnostic circle of Spanish Kabbalah. His writings contain valuable content that distinguishes him from his contemporaries. Some of his work was incorporated and, at times, modified by his student, Mo…