Yaakov ben Yaakov Moshe Lorberbaum of Lissa (1760-1832) (known in English as Jacob ben Jacob Moses of Lissa, Jacob Lorberbaum or Jacob Lisser, Hebrew: יעקב בן יעקב משה מליסא) was a rabbi and posek. He is most commonly known as the "Ba'al HaChavas Da'as" or "Ba'al HaNesivos" for his most well-known works, or as the "Lissa Rav" for the city in which he was Chief Rabbi. Source: Wikipedia (en)