Denier - Hermann III

Hermann III served as Archbishop of Cologne from 1089 to 1099, a tenure defined almost entirely by his entanglement in the Investiture Controversy. He initially supported Henry IV, then shifted allegiances — a political oscillation that left the archbishopric financially and institutionally strained. Cologne's mint authority during this period drew from rights confirmed under earlier Ottonian grants, but the practical output was shaped by the instability of imperial-papal conflict playing out directly in the Rhineland.

The references place this squarely within the broader Rhenish denier tradition of the late eleventh century, when episcopal mints dominated small-denomination silver production in the region.