Keywords: Empress Teophanu.jpg author circa 990 golden plate object history The golden plate bacame the cover of the Codex Aureus in 1030 credit line accession number title István Bóna Hungarians and Europe in the 9-10 century Bóna István A magyarok és Európa a 9-10 században scanned by Szilas Commonist PD-old-100 History of Hungary in the Árpád age Theophanu Holy Roman Empress |