Flourished in the thirteenth century at Barcelona, Spain. According to De Rossi ("Dizionario," p. 237) there is, among the manuscripts of the Vatican library, an unpublished philosophical work by him, in four parts, called "Arba'ah Ṭurim" (The Four Rows), which treats of God's existence, of divine providence, of the reasons for the Mosaic laws, and of the purpose of the Jewish prayers.