Roman Danylovich (Роман Данилович; Danylovyč, c. 1230 – c. 1261), Prince of Black Ruthenia (Novogrudok) 1254–1258, Prince of Slonim.
He is third of Danylo Romanovych's five sons.
[1] He married Gertrude, Duchess of Austria.
[1] They had a daughter, Maria Romanovna.
This biography of a member of a European royal house is a stub.