Mentioned in the sources from 1333 to 1379/1380. He was the son of Boril (Gradislauo Borilli). Vojvoda Gradislav (or vexillifer Gradislau, son of Boril in the Latin version of the document) signed along with the Metropolitan of Prizren Arsenije, Kaznac Baldovin, Župan Vratko, Knez Grgur Kurjaković, Stavilac Miloš, Vojvoda Dejan Manjak, Gradislav Sušenica, Nikola Buća, and Archdeacon Marin Baranić in Polog the charter issed by Stefan Uroš IV Dušan from the 22. January 1333 regarding the sale of Ston to the city of Dubrovnik (A tu imь milostь učini kraljevstvo mi u Polozie vь lětoь 6833 měseca ženvara 2 i 2 danь. A tui běhu: sveōsvešni jepiskupь prizrěnski Arsenie, kaznacь Balьdovinь, voevoda Gradisavь, županь Vratkō, knezь Grьgurь Kurjakovićь, stavilacь Miloš, vo(e)voda Deganь Manijaakь, Gradisavь Sušenica, Nikola Bučga, arhidjak Marinь Baraninь/ Actum est hoc datum in Pollogo, presentibus uenerabili patris, domino Arsenio, episcopo Prisirenensis, ac nobilibus viris, casneçio Baldouino, Gradislauo Borilli, uexillifero, çuppano Vratcho, comitate Gregorio Curiaçi, staluileçio Milosio Voyni, uoieuoda Deiano Maniiacho, stauileçio Gradislauo Suseniçe, Nicolao Buchia, archidiacono Antibarensis et Marino Miroslai Antibarensis, et aliis quam pluribus currente anno Domini, millesimo, trecentessimo tercio decimo tercio, mensis Januari uigessimo secundio die, indictione prima). Gradislav bearing the title of tepčija donated the settlement site Běla Vodica with all rights to the Monastery of Treskavec. This donation was confirmed by the Serbian King Stefan Uroš IV Dušan in the second charter for the Monastery in Treskavec (Selište Běla Vodica sь vsěmi pravinami, što priloži tepci Gradislavь). Gradislav figures again in the charter of Serbian Emperor Stefan Uroš IV Dušan for the Monastery of the Holy Archangels in Prizren issued probably in August 1347. As tepčija he confirmed the boundary mark of the land Trstena during the reign of the Stefan Uroš III Dečanski (i sь zemlomь na Trьstěnoi što si jestь drьžalь u roditelь carьstva mi, i što mu je utesalь tepʼči Gradislav i igumьnь carьstva mi). In 1352 the Serbian Emperor Stefan Uroš IV Dušan sent to the Byzantine Emperor John V Palaiologos an auxiliary cavalry force under the command of Borilović, who was in charge of the office of kaznac. They fought together against John VI Kantakuzenos and the horsemen of Orhan I in the battle of Didymoteichon. According to Kantakuzenos almost all 7,000 Serbs fell at the battle and the kaznac could escape only with a small number of troops (γενομένου δὲ ἐκεῖ τοῦ βασιλέως ἀδελφοῦ, ἡ στρατιὰ ἐξεπέμφθη παρασκευασθεῖσα ἑπτακισχίλιοι ἱππεῖς, ὧν ἐστρατήγει Κασνιτζὸς ὁ Μποριλοβίκης προσαγορευόμενος, ἐκ τῶν ἐπιφανεστάτων μάλιστα ὢν τῶν παρὰ Τριβαλοῖς… Κασνιτζὸς δὲ ὁ στρατηγὸς μετά τινων εὐαριθμήτων ἠδυνήθη διαδρᾶναι, τῶν ἄλλων ἁπάντων τῶν μὲν πεσόντων, τῶν δ’ ἑαλωκότων). It is not clear, if Borilović is the same person as Gradislav. Naumov suggests, that Borilović was in fact his brother or close relative. He owned the village Jelašnica. The Serbian Despot Lazar donated in 1379/1380 the village Jelašnica, which belonged previously to Gradislav, with church, boundaries, hamlets and all right to the Hilandar Monastery. The Serbian Patriarch Spiridon confirmed in 1380 the wording of the deed of Lazar (selo Elʼšanica Gradisava tepčije i sь crьkviju i s megami i zaselci, s pravinami sela togo). Gradislav was probably buried in the Treskavec monastery. This was proposed by Gligorijević on the grounds of an inscription under the ktetor composition of a man carrying a church model and his wife preserved on the western facade of the parekklesion of the Treskavec monastery (τοῦ τεπέτζηα καὶ κτήτορος τοῦδε τοῦ ναοῦ). On the sheet 436 of the pomenik of the Church of the Holy Virgin Ljeviška in Prizren, the pomen of Peter kaznac Gradislav is mentioned. It might be suggested that Peter was the monk name of Gradislav. Highly questionable is the suggestion of Branka Ivanić, which identifies Gradislav with the bearer of the goldring in the collection of the National Museum in Belgrade. The inscription along the rim of the goldring reads namely Gradislav čelnik.