10 Lei Emmanuel de Martonne

Emmanuel de Martonne was the French geographer whose 1918–1919 work directly shaped Romania's postwar borders. Appointed to the American geographical delegation at the Paris Peace Conference, he produced detailed ethnographic and physical maps of Transylvania that the Allied territorial commissions used when adjudicating Romanian claims against Hungary. His advocacy was consequential enough that Romanian historians credit him as a significant factor in the Trianon settlement of 1920.

This issue is part of Romania's ongoing commemorative silver program honoring foreign figures who contributed to the country's modern territorial formation — a series driven more by historical politics than by collector demand.