Bistumswappen of Passau.Hermann von Eppenstein (* unknown; † 1087) was a Passau councilor from 1085 to 1087.
Hermann von Eppenstein, son of the Duke Markwards of Carinthia, came from an influential family. His first two brothers were Dukes of Carinthia, the third was abbot of St. Gallen, and later even Patriarch of
Aquileia
Aquileia / / / / ;Bilingual name of ''Aquileja – Oglej'' in: vec, Aquiłeja / ; Slovenian: ''Oglej''), group=pron is an ancient Roman city in Italy, at the head of the Adriatic at the edge of the lagoons, about from the sea, on the river N ...
.
In April 1085, the Emperor Henry IV appointed him to the
bishop of Mainz
The Diocese of Mainz, historically known in English as ''Mentz'' as well as by its French name ''Mayence'', is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Germany. It was founded in 304, promoted in 780 to Metrop ...
as a counter-bishop at the Synod of Mainz, declaring the papal faithful Altmann, the real
Bishop of Passau
The Diocese of Passau is a Roman Catholic diocese in Germany that is a suffragan of the Archdiocese of Munich and Freising.Gebhard of Salzburg, by Bishop Altmann of Passau, and by Bishop Meginward of Freising with the church spokesman.
On his deathbed, Hermann was allegedly repent, and asked for the resignation of the church-bearer, since he regretted the repression of Altmann. According to this he was to have sent him the episcopal insignia. His followers believed in this behavior to recognize feverish fantasies.
As an anti-bishop, he is not led today by the Bishop of Passau as a former bishop.
