Mentioned in the charter of the Serbian Despot Konstantin Dragaš for the Hilandar Monastery from 15th August 1381. He was the son of Ioannes Liberos (᾿Ιωάννης Λίβερος, Jovan Oliver) and Maria Liberissa (Μαρία Λιβέρισσα, Ana Marija,). His uncle was Mpogdanos (Μπογδάνος, Bogdan). He was the brother of Kraikos (Κράϊκος, Krajko), Damianos (Δαμιανός, Damjan), Dabiživь, Vidoslavь, Oliverь and Danica. According to the charter of the Serbian Despot Konstantin Dragaš for the Hilandar Monastery from 15th August 1381 Maria Liberissa expressed short before her death the will that the Monastery of Saint Archangel Michael and Holy Father Gabriel in Lěsnovo should devolve after her death on the Hilandar Monastery. Her sons Kraikos (Κράϊκος, Krajko) and Rusinь confirmed that their mother wanted to donate the Monastery of Saint Archangel Michael and Holy Father Gabriel in Lěsnovo to the Hilandar Monastery (I kako je i despotica Ōlivera despota na sьmrьti rekla i sь synōma svoima Kraikōmь i Rusinomь da je paki tai crьkvь Hilandaru). He is attested in the Lesnovski pomenik along with his family as a ktitor (Poměni, gospodi, blagočьstivyihь ktitorь našihь vь carstvi si: Olivera děspota, i podružie Mariju, i čeda ihь: Dьnicu, Kraika, Damiana, Vidoslava, Dabiživa, Rusina, Olivera).