«Haham of the Portuguese congregation in Hamburg; died there March 19, 1655. He was the author of “Panim chadashot” (Venice, 1651), a short compilation of ritual ordinances according to the ritual codices, containing also an index to the collection of published decisions after Joseph Caro. The “Sefer ha-Zikronot” of Samuel Aboab was falsely ascribed to Jesurun. He wrote also, in Portuguese, “Liuro da Providencia Divina” (Amsterdam, 1663), wherein he makes philosophical reflections on the nature and results of divine providence. He was succeeded by Isaac Jesurun of Venice as haham of the community on Aug. 16, 1656» (http://www.jewishencyclopedia.com/view.jsp?artid=253&letter=J&search=Jesurun#987, sezione Isaac ben Abraham Chayyim Jesurun all’interno della voce Jesurun – curate da Richard Gottheil e Meyer Kayserling – della Jewish Encyclopedia).