Alfonso X's second war against Granada, resumed after the Banu Ashqilula confederation switched allegiance to the Marinid sultan of Morocco, forced the Castilian crown into sustained military expenditure through the late 1270s and into the 1280s. The Coruña mint was among those reactivated or expanded during this period precisely to fund that campaign. Billon coinage of this era was frequently debased further as military costs mounted — Alfonso's monetary policy in these years was among the most unstable of his reign, contributing directly to the baronial revolt that led to his deposition by his son Sancho in 1284.
Alfonso X's second war against Granada, resumed after the Banu Ashqilula confederation switched allegiance to the Marinid sultan of Morocco, forced the Castilian crown into sustained military expenditure through the late 1270s and into the 1280s. The Coruña mint was among those reactivated or expanded during this period precisely to fund that campaign. Billon coinage of this era was frequently debased further as military costs mounted — Alfonso's monetary policy in these years was among the most unstable of his reign, contributing directly to the baronial revolt that led to his deposition by his son Sancho in 1284.