http://en.wikipedia.org/wiki/House_of_Ilo%C4%8Dki
Sources of family origin The family was a scion of the noble clan known as Orahovički (Hungarian: Raholcai), according to their estate Orahovica in medieval Križevci County. Gug, the oldest known ancestor of the family, possessed estates in the area of Dubica district in Lower Slavonia, and that is why the historians believe that the family originated from there. Gug's successors later gained some other estates in Croatia (Zrin, Bukovica, Viljevo and Jošava), as well as in Hungary (Palota) and Slovakia (Galgóc (Hlohovec)). In 1364 king Louis I gave them Ilok Castle together with its estate, and thus they became Iločki.