| Name | Bertha | |
| Suffix | Abbess of Avenay | |
| Birth | Abt. 830 | |
| Gender | Female | |
| Death | 852 | |
| Person ID | I322559462089 | Hurst Improbable Family Tree |
| Last Modified | 15 Jun 2026 | |
| Father | Lothair King of Middle Francia, b. 795 d. 29 Sep 855, monastery of prüm, prüm, westeifel, Rhineland-Palatinate, Germany (Age 60 years) | |
| Mother | Ermengarde of Tours, b. Abt. 810 d. 20 Mar 851 (Age 41 years) | |
| Family ID | F1988 | Group Sheet | Family Chart |