Dukljan or Dukljanin (Serbian Cyrillic: Дукљан or Дукљанин) is a figure in Montenegrin mythology[1] that is a reflection of the Roman emperor Diocletian.
[1] He is presented as the adversary of God,[1] possibly because of the real Diocletian's persecution of Christians.
[2] Legends attribute to him building of the town of Duklja,[1] Dukljan's border,[1] and the Roman milestones near Tuzi (according to a folktale, he was throwing them at his brother and sister as they were fleeing to Hum).
[1] A Serbian folk song about Dukljan says that he once removed the Sun from the sky and brought it to the Earth.
[1] Several variants of a story that he is still alive exist; according to them he is chained in the Morača river near Duklja (the Vizier's bridge).