10 Euro Queen Jelena Slavna

Jelena, known as "Slavna" (the Glorious), was a 10th-century Croatian queen whose historical documentation rests almost entirely on a single inscription — the Hollow Church epitaph from the island of Solin, one of the oldest surviving Croatian-language texts. Whether she was wife to King Mihajlo Krešimir II or another ruler remains debated. Croatia's adoption of the euro in January 2023 opened the door to commemorative euro-denominated gold issues impossible under the old kuna framework; this piece is a direct product of that monetary transition.