Gold Leopard - Edward of Woodstock

Edward of Woodstock — the Black Prince — was granted Aquitaine by his father Edward III in 1362, and the leopard was struck as part of his effort to establish a functioning monetary administration in the duchy. The coin's name derives directly from the English heraldic tradition rather than any French precedent, a deliberate assertion of Plantagenet authority over a territory that French lords continued to contest throughout the decade.

The principality collapsed under Edward's rule, undone by the ruinous cost of the 1367 Castilian campaign and the hearth tax revolt that followed. He departed Aquitaine permanently in 1371, ill and politically broken.