THE SWIATOPOLK-CZETWERTYNSKI'S ARE A POLISH DUCAL FAMILY, DESCENDING FROM RURIK, LEADER OF THE VARANGIAN TRIBES, ORIGINATING FROM SCANDINAVIA, WHO COLONISED, IN THE 9TH CENTURY, VAST LANDS COMPRISED BETWEEN THE BALTIC AND THE BLACK SEAS, ESTABLISHING WHAT IS KNOWN AS THE "RUS" KINGDOMS.

THE ELDEST AND MOST IMPORTANT WERE NOVGOROD AND KIEV.