Denier Bracteate - Udo I

Udo I served as Bishop of Naumburg from 1125 to 1148, a period when the bracteate form was spreading rapidly through Saxony and Thuringia as regional ecclesiastical lords asserted minting rights granted under the fragmented authority following the Investiture Controversy. The thin, single-sided fabric of bracteates like this one made them extraordinarily vulnerable to damage, which accounts for why surviving examples in any decent state are scarce relative to contemporary deniers struck on thicker flans.

The Löbbecke reference places this among a tightly documented group of Naumburg episcopal issues, with Berger's cataloguing confirming the attribution to Udo's episcopate rather than his successor.