Dietrich (Dirk) I Count of West Friesland
Dietrich (Dirk) I Count of West was born before 0885 in Noordwijk-Binnen, Zuid, Holland.  He died in 0942.

 Gerberge (Geva) of Mayinhard
Gerberge (Geva) of was born about 0903 in Egmond-Binnen, Netherlands.  Gerberge (Geva) of is no longer alive.

 Dietrich (Dirk) II Count of West Friesland
Dietrich (Dirk) II Count of West was born in 0938 in Egmond-Binnen, Netherlands.  He died at the age of 50 on June 5th, 0988.