He appears ὁ ὀικεῖος αὐτῇ κύριος Γεώργιος ὁ λογοθέτης in the prostagma charter of the Serbian Emperor Stefan Uroš IV Dušan for the Saint Anastasia Monastery near Zichna from February 1352. He was the logothetь of the Serbian Emperor Stefan Uroš IV Dušan, 1349–1355. He worked also as a logothetь for the Serbian Empress Jelena (Helena), the wife of Stefan Uroš IV Dušan and the mother of Serbian Emperor Stefan Uroš V. (siju knigu dade Gjurgь logothetь gospožde carice presvetěi bogorodici Gory Sinaiskyje, bog da go prostit). According to the hypothesis of Konstantin Jireček he was the brother of Radoslav’, the Governor of Serres, and čelnik Miloš from the Povika family. In 1361 the Ragusan republic sequestrated the deposited money of Georgios for the purpose of war (Prima pars est, de accipiendo de manibus Milçe de Lebro denarios Jurech Logofeti, et ponere ipsos in manibus comunis pro serviçiis guerre). On 27th February 1367 Georgios sent his will from his residence in Thessalonike to the Ragusan republic. His decision was to sell his property and belongings in Ragusa administrated by Milac Lebrović and Lovro Razumenović. He donated according to the testament the earned sum and also other gifts, including notary’s books, to his relative Živko Dlьžić (prědal dobitьkь i rěznicu moju vašimь Dubrovčanomь, na ime Milcu Dumonikju i Lavretevi Razumenikju, a bě i vsi znate a ōdь vasь ne se utajalo. Da znate vlastele, moja bratija, ere sьmь bilь dlьžьnь ō-davno za mnogo godištь za potrebe, koe ni je iznosilь Živko, sinь Radoslava Dlьžica, vašь Dubrovčaninь, za mnogo mu sьmь drьžnь bilь do denesь, ere ni jestь rodinь krьvьno, a i da znate, vlastele, ere mu prodahь i darovahь vesь moi dobětьkь i riznicu, što mi je u Dubrovnici, no je na Milci Dumoniki i na Lavrete Razumenoviku, i kuke i vinograde, inonikatske knige da e volьnь Živko uprašati i prodati i knigami inonikatskimi i kaželeriskimi, kleti se i dušiti se na moju dušu, kakono ja samь Gjuregь logofetь, i da slobodi, kogo mu se vidi, kano ja samь Gjuregь logofetь. a sezi mu prodahь i darovahь u Sulune na ·kz· dьnь febrara měseca). His brother Radoslav’, the Governor of Serres, wrote to the Ragusan republic and confirmed that the belongings of the deceased logotet Georgios (Gjurgь) were rightly bequeathed to his second brother Miloš. He issued the respective document „in domo suo in civitate Serrarum“ on the 15th May 1368.