lawspeaker

noun1

1. •
   (historical) An official in Scandinavia whose duties included memorizing laws as well as presiding over, and reciting the laws at, regional Things or the Althing.

   • The lawspeaker was the president of the Althing. […] Except for the hallowing ceremony, the lawspeaker was in charge of all the affairs of the Althing. — 1974