Gerolf or Gerulf was the second count of this name who is attested in the area of Friesland. 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, although the... Wikipedia
Born: 850 AD
Died: 898 AD (age 48 years)
Children: Dirk I, Count of Holland and Waldger van Teisterbant
Parents: Gerulf I of Frisia
Grandchildren: Dirk II, Count of Holland and Radbound van Friesland
Great grandchildren: Arnulf, Count of Holland, Egbert, and Erlinde of Holland
Partner: NN