Gold Écu - Philip of Saint Pol

Philip of Saint-Pol ruled Brabant for just three years before dying without an heir in 1430, reverting the duchy to the Burgundian orbit under Philip the Good. His coinage window was narrow enough that the gold écu series attributed to his reign spans the entirety of it — these were not a phase of his mint program, they were essentially the whole of it. Delmonte's attribution and the Witte reference place this squarely among the rarest ducal gold issues of the Low Countries by sheer reign-length constraint.