Denier Bracteate - Mieszko III the Old Gniezno or Kalisz mint

Mieszko III ruled Greater Poland twice — expelled by his own nobles in 1177, he spent decades in political exile before recovering his position, a dynastic instability that makes attribution of his bracteate issues genuinely difficult. The Gniezno and Kalisz mints both operated under his authority at different points, and the reference literature has not fully resolved which issues belong to which phase of his reign.

Bracteate production in Piast Poland replaced the older two-sided denier during the twelfth century, likely influenced by contemporary German bracteate coinage from Saxony and Thuringia. The single-sided fabric is inherently fragile, and undamaged survivors are scarce.