The Duchy of Mimbre is a region of Arendia in The Belgariad and The Malloreon, related fantasy series by David Eddings. Its capital of the city of Vo Mimbre. It is peopled with armored knights and their ladies, all of whom speak in an archaic form (lots of "thee"s and "thou"s), the archaic form of Middle English. The region is at constant war with that of Asturia, if not always officially, and is also marred by the institution of serfdom, which often becomes an issue in The Belgariad.