https://en.wikipedia.org/wiki/Rurik_dynasty

The Rurik dynasty(Belarusian: Рурыкавічы, romanized: Rúrykavichy; Russian: Рюриковичи, romanized: Ryúrikovichi, IPA: [ˈrjʉrʲɪkəvʲɪtɕɪ]; Ukrainian: Рюриковичі, romanized: Riúrykovychi; literally "sons/scions of Rurik"), also known as the Rurikid dynasty or Rurikids, was a noble lineage founded by the Varangian prince Rurik, who established himself in Novgorod around the year AD 862.[1] The Rurikids were the ruling dynasty of Kievan Rus' (after the conquest of Kiev by Oleg of Novgorod in 882) before it finally disintegrated in the mid-13th century, as well as the successor Rus' principalities and Rus' prince republics of Novgorod, Pskov, Vladimir-Suzdal, Ryazan, Smolensk, Galicia-Volhynia (after 1199), Chernigov, and the Grand Duchy of Moscow (from 1263).

Following the disintegration of Kievan Rus', the most powerful state to eventually arise was the Grand Duchy of Moscow, initially a part of Vladimir-Suzdal, which, along with the Novgorod Republic, established the basis of the modern Russian nation.[2] Ivan III threw off the control of the Golden Horde and consolidated the whole of central and northern Rus', ruling it as "Prince of All Rus'".[3][4] Ivan IV assumed the title "Tsar of All Rus'" and transformed the state into the Tsardom of Russia. The Rurik line ruled until 1598, following which they were succeeded by the Romanovs after the Time of Troubles.[5]

The Romanovichi branch of the dynasty ruled southwestern Rus' and part of central Rus'. These territories were unified by Roman the Great and his son Daniel Romanovich, who was later crowned by Pope as king of Galicia–Volhynia. After the line's extinction, the principality was absorbed by Poland and Lithuania, and the title of its prince eventually passed to the ruler of Austro-Hungary. According to Ukrainian historiography continuous Rurikid sovereignty from the ninth century to the fourteenth represents part of Ukraine's historical process.[6] In Ukrainian historiography of the 19th century, Ukrainian historiographer Mykhailo Hrushevsky, who wrote a book under a similar name, referred to Rus' civilization as Ukraine-Rus'.[7] According to his studies Rus' is not considered to have ended in 1240, but merely to have shifted its centre slightly westward.[8][6]

As a ruling dynasty, the Rurik dynasty held its own in some parts of Rus' for a total of twenty-one generations in male-line succession, from Rurik (died 879) to Feodor I of Russia (died 1598), a period of more than 700 years. They are one of Europe's oldest royal houses, with numerous existing cadet branches.