Итальянские «бароны» трапезундских императоров

— Analyses the term «baron» in European and Byzantine tradition and the problem of foreigners in the service of the emperors of Trebizond. Special attention is paid to the history of the Genoese family «de Nigro», which had commercial and other vital interests in Trebizond. The research was carried out on the basis of documents from the State Archives of Genoa. [Bliznjuk]