Home › Authors › Transylvania (Principality). Sovereign (1630-1648 : Rákóczi György I) 👤 Transylvania (Principality). Sovereign (1630-1648 : Rákóczi György I) Books by Transylvania (Principality). Sovereign (1630-1648 : Rákóczi György I) No books found yet. Books will appear once the catalogue is populated.