He founded the church of St Florin in Coblenz and was buried at the monastery on Reichenau Island on Lake Constance .
Aside from being duke , Herman was from 939 count in Langau , from 948 count in Auelgau , and from 947 lay abbot of Echternach .
Herman founded the church of St Florin in Coblenz and was buried at the monastery on Reichenau Island on Lake Constance .
Aside from being duke , Herman was from 939 count in Langau , from 948 count in Auelgau , and from 947 lay abbot of Echternach .