The Derbys (originally the d'Urbia) came over with the Fordanish conquest. They trade leather, wool, timber, lead, and tin from Tolpereth in the fairs of Orly, Brecany, Toçenson, and Barceras.
The amazing imagery displayed in World Anvil is graciously vested by
His Titanship Christopher Dravus of Ironrise Games,
Our Revered Deity Basic Dragon / Rin &
His Majesty Caeora