Silver Hardi - Henry IV / Henry V / Henry VI

The hardi billon was a workhorse denomination of English-held Aquitaine, and production across the reigns of three Henrys spanned one of the most destructive phases of the Hundred Years' War. Attribution between Henry IV, V, and VI issues is notoriously difficult — the types share closely related dies, and without a clear mint mark or documentary provenance, most examples are cataloged to the collective reign span rather than a specific king.

Henry V's final push into France and the Treaty of Troyes in 1420 briefly made the English crown heirs to France itself. Gascony's mints kept striking through all of it.