- b.~ 0849 in Leeuwarden, Friesland, Netherlands d.0885 in Lorraine, Moselle, France
- b.0885 in Guines, Pas-de-Calais, Normandie, France d.0965
- b.~ 0865 in Leeswarden, Friesland, Netherlands d.26 OCT 907
- b.~ 0962 in Guines, Pas-de-Calais, Normandy, France