Holland County
If you are looking for the page with the statistics about this polity you can find it here:All Statistics
Was a county of the Holy Roman Empire.
Establishment
January 1151: The County of Holland split off from Bishopric of Utrecht.
Chronology
Interactive Chronologies with maps are available in the section Changes Navigation
Was a war of succession over the County of Holland from 1203 until 1206, brought on by the death of count Dirk VII.
January 1205: In 1204, Louis II of Loon invaded Holland with a massive army, and managed to expel William of Frisia to Zeeland.
January 1206: From 1205 William of Frisia was supported by the inhabitants of Zeeland, Kennemerland and Rhineland.
April 1206: Louis II of Loon retreated from Holland in early 1206.
October 1206: On 14 October 1206, peace was signed with the Treaty of Bruges. Formally, Holland was partitioned between Louis and William: William of Frisia received Zeeland and the region around the city of Geertruidenberg, Louis II of Loon would keep the rest Holland.
January 1211: Several sources show that William of Frisia became the de facto ruler of Holland. For example, William called himself simply comes Hollandiae ("count of Holland") in a 1210 deed.
January 1290: In 1289 Medemblik received city rights from Floris V, count of Holland.
January 1300: Holland County united with the County of Hainaut (German: Hennegau).
January 1350: Holland is acquired by the Bavarian Wittelsbachs.
January 1379: Based on Gustav Droysen's Map of the Holy Roman Empire in the XIV century.
Disestablishment
January 1391: Based on Gustav Droysen's Holy Roman Empire Maps.
Selected Sources
Droysen, G. (1886): Historischer Handatlas, Bielefeld and Leipzig (Germany)
Droysen, G. (1886): Historischer Handatlas, Bielefeld and Leipzig (Germany), pp. 30-31