Evidence about his life is scarce but his literary legacy suggests an excellent knowledge of Greek and Slav languages. In 1343, King and later Emperor, Stefan Dušan began to build the Monastery of the Holy Archangels near Prizren. And he appointed Jakov, a learned and highly esteemed monk, its first iguman (abbot).
In 1345, Stefan Dušan captured the city of Serres from the Byzantine Empire.
And Jakov was appointed Metropolitan of Serres and its surrounding territories. The population of Serres was mixed Slavic, Albanian and Greek and Jakov was fluent in all three languages and their dialects.
In fact, Jakov wrote some literature hymns in Greek, and is numbered among the Greek authors as well as Serbian. After the sudden death of Stefan Dušan in 1355, Jelena, Dušan"s wife, became a nun, took the name Jelisaveta, and moved from Skoplje, the capital of Serbia, to Serres.
From there, she administered her estates.
And Jakov was at her side as wise counsel Jakov wrote the Triodion which he sent as his bequest to the Monastery of the Theotokos in Sinai in 1359 or 1360. At present, the Triodion (a two-part Triodion, one for Lent and the other for the period between Easter and Pentecost) is kept in Monastery of Saint Catherine in Sinai.
Copies are also kept at Hilandar Monastery, Mount Athos, Greece, and in libraries in the United Kingdom, Europe and North America.