Mentioned in the chrysobull charter of the Serbian Emperor Stefan Uroš IV Dušan for the Hilandar Monastery from 1347. His charter concerning the donation of the property Plumiska to the Monastery Lavra on Holy Mount Athos was issued between 1350 and 1351. He is also attested in the chrysobull charter of the Serbian Despot Ioan Uglješa (Ioannes Unklesis) for the Monastery of Kutlumus from April 1369 and in an act for the Batopedi Monastery from 1369/1371. He was a nobleman of the Serbian emperor Stefan Uroš IV Dušan (pravověrnago vlastelina carstva mi). He together with the nobleman Branilo were entrusted by the Serbian Emperor Stefan Uroš IV Dušan with the delimitation of the border of the Hilandar’s possession in Lozikion (Lužac). He donated in 1350/1351 the river Plumiska with the entire area belonging to it to the Lavra Monastery on Holy Mount Athos. The Serbian Despot Joan Uglješa (Ioannes Unklesis) donated in April 1369 the village Neōhorь on the plain of Mavrovo with all boundaries and rights to the Monastery of Kutlumus. The monastery obtained all estates, which were in possession of Theōdorь Ōduevikь. The community of monks on the Mount Athos received also pronoia helders with people, land parcels and fruit trees, which were in some way dependent upon Kalabaris (Kalavar) (selo u poli Mavrovьskom imenem Neōhorь sь vsemi megami i s pravinami sela togai, sь vsemь što e drьžalь Theōdorь Ōduevikь pri carstvě mi, i pri Kalavari proniari što su drьžali ili ljudi ili vokie sь vsem periorom sela). The Serbian Despot Joan Uglješa gave the selište located between the village Akrotirion and the river Plumiska as a tax-free property to the Monastery of Batopedi with all rights. The selište was a possession of Lanzo (probably Lantzaretos), who lived at the time as Kalabaris or was bonded by a certain contract with Kalabaris (i darova crtvo mi ōbitěli prstie Bce Vatopedu selište megju Akrotiro, i megju Plumsko šte e drьžalь Lanzo pri Kalavari sь vsemi megjami i pravinami sela toga).