Yaakov ben Moshe Levi Moelin

Rabbi
Yaakov ben Moshe Levi Moelin
Grave of Yaakov ben Moshe Levi Moelin in Worms, Germany
TitleMaharil
Personal life
Bornc. 1365
DiedSeptember 14, 1427
ParentRabbi Moshe Levi Moelin
Religious life
ReligionJudaism
ProfessionRabbi of Mainz
BuriedJewish Cemetery, Worms

Yaakov ben Moshe Levi Moelin (Hebrew: יעקב בן משה מולין) (c. 1365 September 14, 1427) was a Talmudist and posek (authority on Jewish law) best known for his codification of the customs (minhagim) of the German Jews. He is also known as Maharil (Hebrew: מהריל) - the Hebrew acronym for "Our Teacher, the Rabbi, Yaakov Levi" - as well as Mahari Segal or Mahari Moelin. Maharil's Minhagim was a source of law for Moses Isserles’ component of the Shulkhan Arukh.