1 Obol - Ferdinand II two kings

Ferdinand II of León struck these coins jointly with his nephew Alfonso VIII of Castile during a brief period of political alignment between the two kingdoms — an arrangement that dissolved as both rulers consolidated independent power. The "two kings" designation reflects a genuine co-issue, not merely a titular acknowledgment, making it one of the more unusual monetary collaborations of twelfth-century Iberia.

The billon content is characteristically low even by the debased standards of Leonese coinage of this period.