Denier Bracteate - Diethelm of Krenkingen and Werner of Staufen

Diethelm of Krenkingen served as Bishop of Constance from 1189 until his death in 1206, making the upper bound of this issue's dating range a numismatic convention rather than a historical one — Werner of Staufen, his successor, continued striking bracteates of near-identical type, complicating attribution without die study. The joint attribution in the reference literature reflects genuine uncertainty rather than confirmed co-issue.

Constance bracteates of this period circulated primarily within the ecclesiastical territories of the Upper Rhine and Lake Constance basin, where the bishop exercised both spiritual and temporal authority under the Holy Roman Empire.