Hagin ben Moses or Hagin filus Mossy (transliteration from Hebrew

Hebrew language

Hebrew is a Semitic language of the Afroasiatic language family. Culturally, is it considered by Jews and other religious groups as the language of the Jewish people, though other Jewish languages had originated among diaspora Jews, and the Hebrew language is also used by non-Jewish groups, such...

, Hayyim ben Moshe) was Presbyter Judaeorum

Presbyter Judaeorum

The Presbyter Judaeorum or Presbyter Judæorum was the chief official of the Jews of England prior to the Edict of Expulsion. The office appears to have been for life, though in two or three instances the incumbent either resigned or was dismissed. Prynne, in his "Demurrer" The Presbyter Judaeorum...

 or chief rabbi

Chief Rabbi

Chief Rabbi is a title given in several countries to the recognized religious leader of that country's Jewish community, or to a rabbinic leader appointed by the local secular authorities...

 of the Jews of England and agent of Richard of Cornwall

Richard, 1st Earl of Cornwall

Richard of Cornwall was Count of Poitou , 1st Earl of Cornwall and German King...

. He appears to have been the chirographer of the Jews of London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

, and obtained great wealth, but he lost it under Edward I

Edward I of England

Edward I , also known as Edward Longshanks and the Hammer of the Scots, was King of England from 1272 to 1307. The first son of Henry III, Edward was involved early in the political intrigues of his father's reign, which included an outright rebellion by the English barons...

. In 1255 he was appointed presbyter on the expulsion of Elias from that office. It seems probable that he was a brother of Elias (Tovey, "Anglia Judaica," p. 58). During the riots preceding the battle of Lewes

Battle of Lewes

The Battle of Lewes was one of two main battles of the conflict known as the Second Barons' War. It took place at Lewes in Sussex, on 14 May 1264...

 in 1264 he fled to the Continent

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

. His wife, Antera, and his son, Aaron, seem to have held possession of the only remaining synagogue

Synagogue

A synagogue is a Jewish house of prayer. This use of the Greek term synagogue originates in the Septuagint where it sometimes translates the Hebrew word for assembly, kahal...

 in London at the time of the Edict of Expulsion

Edict of Expulsion

In 1290, King Edward I issued an edict expelling all Jews from England. Lasting for the rest of the Middle Ages, it would be over 350 years until it was formally overturned in 1656...

in 1290.