Denier - Theoderich

Basel's episcopal mint gained the right to strike coinage under a series of imperial privileges, and the deniers of this period reflect the close relationship between Bishop Dietrich I of Basel and the Salian emperors. Dietrich received significant territorial and ecclesiastical concessions from Henry III, whose reformist agenda paradoxically strengthened certain episcopal lordships even as it sought to curb others.

The Michel Bâle sequence places this type among the thinner, lighter issues that emerged as debasement gradually crept into the upper Rhenish region through the mid-eleventh century.