of Serres and therefore his origin was confused,though he was from Edessa and not from Serres: 7) Sevastos Leontiadis (1690-1765) from Kastoria Sevastos Leontiadis ( Greek : Σεβαστός Λεοντιάδης) was most known as the director of the Kastoria school between 1726 and 1728 . He was born in Kastoria on 1690