| Appr. 814 | Born as a swabian nobel. |
| Benedictine monk in Ellwangen. Temporarly on duty in the monastery of the arch-vicar Grimald in St. Gallen | |
| 837-842 | Ermanrich writes the life of the anglosaxon hermit Sualo (Sola) of Solnhofen |
| 848-854 | Ermanrich writes the life of Hariolf, bishop of Langres, founder of the monastery of Ellwangen, |
| 866 | Ermanrich is appointed as Bishop of Passau |
| 867 | Bishop Ermanrich tries unsuccessfully to proselytize parts of Bulgaria |
| 868 | At the synod of the empire in Worms bishop Ermanrich attracts the special interest of the participants due to his recent experiences in the east of Greece. |
| 870 | Ermanrich participates in the advance of the bavarian episcopate against Methodius |
| 873 | Bishop Ermanrich is suspended by pope Johannes VIII because of his involvement in taking action against Methodius. |
| 874 | Bishop Ermanrich dies |
working and translation: Volkhard
Pfeifle
(23.5.2005)