Holland
The County of Holland lay in the Rhine-Meuse delta, with its seat at The Hague. In 1337 William of Avesnes ruled Holland, Zeeland and Hainaut.
William II died fighting the Frisians in 1345, and the Wittelsbachs inherited Holland amid the Hook and Cod Wars. Philip the Good of Burgundy took it in 1433. Sea Beggars seized Holland in 1572; after the 1581 Act of Abjuration it led the United Provinces. The county ended in the Batavian Revolution of 1795, and its lands joined the United Kingdom of the Netherlands after 1813.