What is in Holland, and, until the 19th century, also in Cape Colony, a council to assist a local magistrate in the government of rural districts; hence, also, a member of such a council called?

heemraad — In Holland, and, until the 19th century, also in Cape Colony, a council to assist a local magistrate in the government of rural districts; hence, also, a member of such a council. (Webster's 1913.)