ノヴゴロド公
The office began sometime in the ninth century when, according to tradition, the Viking (Varangian) chieftain Rurik and his brothers were invited to rule over the Eastern Slavs, but real reliable information on the office dates only to the late tenth century when Vladimir the Great was prince of Novgorod. The office or title technically continued up until the abdication of Nicholas II in 1917 – among one of his titles (although his list of titles was rarely given in complete form) was Prince of Novgorod the Great.