The States of Holland and West Frisia (Dutch: Staten van Holland en West-Friesland) were the representation of the two Estates (standen) (Nobility and Commons) 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.
The Nobility was normally represented by the Land's Advocate of Holland or Grand Pensionary of Holland, who combined the votes of the ten members of the Ridderschap (the "Knighthood") in the estates; the nobility was also supposed to represent all rural interest, including those of the farmers. The Commons consisted of representatives of eighteen cities, in ancient feudal order: eleven of the Southern Quarter: Dordrecht, Haarlem, Delft, Leyden, Amsterdam, Gouda, Rotterdam, Gorinchem, Schiedam, Schoonhoven and Brill; seven of the Northern West Frisian Quarter: Alkmaar, Hoorn, Enkhuizen, Edam, Monnikendam, Medemblik and Purmerend.