Jelgava (; also known as Mitau, see also other names) is a city in central Latvia about southwest of Riga with about 63,000 inhabitants. It is the largest town in the region of Zemgale (Semigalia). Jelgava was the capital of the united Duchy of Courland and Semigallia (1578-1795) and the administrative center of the Courland Governorate (1795-1918).