Semigallia is a historical region located in present-day Latvia. It was inhabited by the Semigallians, a Baltic tribe known for their agricultural practices and trade. The region played a significant role during the Middle Ages, particularly in the interactions between local tribes and the Teutonic Knights. The area is characterized by its rich cultural heritage and diverse landscapes, including forests and rivers. Semigallia was part of the Duchy of Courland and has a history of various influences, including German, Polish, and Russian cultures, which have shaped its development over the centuries.