Pristin (Sanctuary's Lot Supplement)
From D&D Wiki
The relatively archaic but populous region spanning the stretch of land south and southeast of Ezers Rhaime, and largely accessible only through Noreig’s borders. Noreig in turn trades heavily with Pristin’s squabbling fiefs. As antagonistic as the many minor holdings of this land can be toward one another, their leaders are united in a xenophobic terror of losing territory to foreign powers. All prior invasions of the last four centuries were met with shocking numbers of provincial militia lead by noble cavalry. Most of Pristin is very well suited to crops, particularly cereal grains, the only large export for most of the area.