Born in 1944 in Telšiai. Graduated from the Lithuanian Art Institute in 1968. Since 1978 member of the Lithuanian Artists' Union. From 1968-1972 he taught at the Kaunas S. Žukas Applied Art Technical School, and since 1990 he has been teaching at the Kaunas Art Institute of the Vilnius Academy of Arts.Jablonskis' work was influenced by the work of Česlovas Kontrimas and Kajetonas Sklėrius. The artist is characterized by realistic stylized drawing, inventive composition, transparent underpainting, and a subtle greenish-silver colouring.