100 Leva St. Constantine and St. Helena

Saints Constantine and Helena hold a specific significance in Bulgarian Orthodox tradition beyond their universal veneration — the dual-named Black Sea resort town of St. Constantine and Helena (now administratively absorbed into Varna) was a major site of communist-era tourism and retains the saints' names despite decades of pressure to secularize Bulgarian toponymy. The Bulgarian National Bank has issued multiple gold pieces tied to Orthodox patronal themes, and this 2013 coin falls within a broader commemorative program rather than circulating currency.