Who
Moses Sephardi, a Jewish scholar and physician of Huesca in Aragon, baptized in 1106 with King Alfonso I as his godfather, and later physician to Henry I of England. His Dialogue against the Jews, cast as a debate between his old and new selves, and the Disciplina clericalis, a collection of Arabic tales, were read all over Europe. Aquinas cites the Dialogue in the Catena Aurea for Jewish tradition and for the Hebrew of the Old Testament.
Quoted in
Matthew 1:22–23