Jacob ben Asher

Jacob ben Asher
Modern artistic depiction
Personal life
Born	c. 1269 Cologne, Holy Roman Empire
Died	c. 1343 Toledo, Castile
Parent	Asher ben Jehiel (father)
Religious life
Religion	Judaism

Jacob ben Asher (c. 1270–1340), also known as Ba'al ha-Turim as well as Yaakov ben haRosh, was an influential Medieval rabbinic authority. He is often referred to as the Ba'al ha-Turim ("Author of the Turim"), after his main work, the Arba'ah Turim ("Four Columns").