Eberhard I, count of Bonngau and count in Zulpichgau and in Keldachgau (904 – 937), son of Erenfried I of Maasgau.
He left children:
- Hermann I count in Auelgau (922/48), who had children:
- Eberhard II count in Auelgau (died 966), and
- Gottfried count in Auelgau (966/70).
- Erenfried II count in Zülpichgau;
- Dietrich, count in Drente and in Salland, count of Hamaland (died before 964). He married Amalrada van Hamaland.