i seek for news concerning one princess of the Crnojevic family (rulers of Montenegro), Ecaterina or Catalina who married Radu the Great prince of Wallachia (1495-1508). she seemed to have a very important role in introducing the printing in Wallachia. i tried to seek on internet genealogical data about the Crnojevic family, but found almost nothing. also, the books that could help me either are quite old or they are inaccesible. i would appreciate any information concerning the genealogy of this family, especially about mentioned Ecaterina, a niece of ruler Ivan Crnojevic.