The most recent and elaborate commentator even calls him an "ethnologist."
The earliest commentator of note was Sir Edward Coke, who published his Second Institute, which deals with Magna Carta, by order of the Long Parliament in 1642.
About 1174) of Ramerupt, commentator and Talmudist.
His treatises on the verbs, written in Arabic, were translated into Hebrew by Moses Giqatilla (11th century), himself a considerable grammarian and commentator, and by Ibn Ezra.
Of the same school were Menahem ben Simeon of Posquieres, a commentator, who died about the end of the 12th century, and Moses ben Jacob of Coucy (13th century), author of the Semag (book of precepts, positive and negative) a very popular and valuable halakhic work.