Gerolf of Holland

Gerolf or Gerulf (c. 850 – 895/896) was the second count of this name who is attested in the area of Friesland (which also included Holland at the time). Gerolf's main area of power seems to have been in Kennemerland. Count Gerolf is often regarded as the founder of the County of Holland,

Coat of arms of the Counts of Holland.