Count of Holland in the context of "John III, Duke of Bavaria"

William II (1307 – 26 September 1345) was Count of Hainaut from 1337 until his death. He was also Count of Holland (as William IV) and Count of Zeeland. He succeeded his father, Count William I of Hainaut. While away fighting in Prussia, the Frisians revolted. William returned home and was killed at the Battle of Warns.

Floris V (24 June 1254 – 27 June 1296) reigned as Count of Holland and Zeeland from 1256 until 1296. His life was documented in detail in the Rijmkroniek by Melis Stoke, his chronicler. He is credited with a mostly peaceful reign, modernizing administration, policies beneficial to trade, generally acting in the interests of his peasants at the expense of nobility, and reclaiming land from the sea. His dramatic murder, said by some to have been arranged by King Edward I of England and Guy, Count of Flanders, made him a hero in Holland.

William I (c. 1167 – 4 February 1222) was count of Holland from 1203 to 1222. He was the younger son of Floris III and Ada of Huntingdon.

William II (February 1227 – 28 January 1256) was the Count of Holland and Zeeland from 1234 until his death. He was elected anti-king of Germany in 1248 and ruled as sole king from 1254 onwards.

Floris III (c. 1141 – August 1, 1190) was the count of Holland from 1157 to 1190. He was a son of Dirk VI and Sophia of Rheineck, heiress of Bentheim.

The States of Holland and West Frisia (Dutch: Staten van Holland en West-Friesland) were the representation of the two Estates (standen) to the court of the Count of Holland. After the United Provinces were formed — and there no longer was a count, but only his "lieutenant" (the stadtholder) — they continued to function as the government of the County of Holland.