Battle of Lalakaon

The Battle of Lalakaon (Greek: Μάχη τοῦ Λαλακάοντος) or the Battle of Poson (or Porson) (Greek: Μάχη τοῦ Πό(ρ)σωνος) was fought in 863 between the Byzantine Empire and an invading Arab army in Paphlagonia (modern northern Turkey). The Byzantine army was led by Petronas, the uncle of Emperor Michael III (r. 842–867), although Arab sources also mention the presence of Emperor Michael himself, while the Arabs were led by the emir of Melitene (Malatya), Umar al-Aqta (r. 830s–863).

• http://en.wikipedia.org/wiki/Battle of Lalakaon