GEROLF (-after [4 Aug] 889). Count of Frisia. Regino names "Gerolfum et Gardolfum comites Fresorum", sent by "Godefridem" as legates to the emperor after Hugo, son of King Lothar, rebelled in 885[183]. The Annales Vedastini record that "Godefridus Danus" was killed in the city of "Gerulfi sui fidelis" by "Heinrico duce" in 885[184]. "Arnolfus…rex" granted property "inter Renum et Suithardeshaghe in comitatu ipsius in locis Northa et Osprehtashem" to "comes noster…Gerolfus" by charter dated [4 Aug] 889[185]. This is the area around the town of Tiel in Teisterband and the coastal area around Leiden at the mouth of the river Rhine[186]. m ---. The name of Gerulf's wife is not known. Gerulf & his wife had two children