Born on 04 04 1937 in Marijampole.
Died 07 09 2019 in Kaunas.
Graduated from K. Donelaitis Secondary School in Klaipėda, and in 1960 studied history at Vilnius University. He taught at the Western Faculty of Vilnius University in Kaunas, later he was a member of the Reconstructive Senate of Vytautas Magnus University and the head of the newly established Department of History. 2001-2006 Head of the Department of Lithuanian Language at Kaunas University of Technology, Faculty of Humanities, Associate Professor. Doctor of Humanities. The first publications of R. Marčėnas in the press appeared in 1967 in the cultural magazines "Jaunimo gretos", "Švyturys", "Nemunas", "Santara", the newspapers "Literature and Art", "Komsomolskaya Pravda", "Kauno tiesa". He has published several reviews of newly published books by Lithuanian prose writers, dozens of journalistic and scientific articles, and has co-authored a couple of major monographs and encyclopaedic publications.