Moravian cabalist lived in the seventeenth century. He was the author of the following: "Or ha-Ganuz," commentary on part of the Zohar (begun in 1648) "Sefer Mo'ade ha-Shem," a treatise on the calendar, beginning with the year 1681 (written at Nikolsburg) cabalistic notes on the prayers, written on the margins of printed copies of the Psalms and of the prayers for the first evening of Rosh ha-Shanah. These three works are extant in manuscript in the Bodleian Library.