Roman II Igorevych(ukr.Роман Ігорович,1177/1179 – September 1211)[1]was anOlgovichiprince. He was prince ofZvenyhorod(1206–1208, 1210–1211), andof Halych(1208, 1208–1209).[1]
Benda, Kálmán(General Editor):Magyarország történeti kronológiája - A kezdetektől 1526-ig/A Historical Chronology of Hungary - From the Beginnings to 1526/;Akadémiai Kiadó, 1981, Budapest;ISBN963-05-2661-1(the part of the book which describes the events of the period from 1197 to 1309 was written by László Solymosi).
Dimnik, Martin:The Dynasty of Chernigov - 1146-1246;Cambridge University Press, 2003, Cambridge;ISBN978-0-521-03981-9.