Province of the SW Netherlands area 1,790 sq km/691 sq mi capital Middelburg towns Vlissingen, Terneuzen, Goes population (1988) 356,000 products cereals, potatoes features mostly below sea level, Zeeland is protected by a system of dykes history disputed by the counts of Flanders and Holland during the Middle Ages, Zeeland was annexed to Holland in 1323 by Count Willam III.