Αναφορά του Σιδηροκάστρου ως Ηράκλειας το 1828 στο βιβλίο Gemälde Griechenlands und der Europäischen Türkey oder Abriß der physischen, historischen und politischen Geographie dieser Länder. 2 4. Demir - Hiſſar ( Heraclea ) , on the ſsouth lidhen slopes of Mount Meetik . It's good near the entrance to the Ichenghel - Dagh pass . A fort on the top of the same mountain, ruled a great I heil the plain of Seres, from which It's only two little miles to the north and defends the passage about the mountains which one encounters several iron mines, but which not to be cultivated.