https://en.wikipedia.org/wiki/Arduinici https://en.wikipedia.org/wiki/Vazul https://en.wikipedia.org/wiki/Rurik_dynasty "Emperor Peter III in 1762 brought fresh Rurikid blood to the Romanovs: he and his wife Catherine the Great both descended from the Rurik dynasty. (Catherine the Great descended from a daughter of Yaroslav I (978–1054) through her maternal grandfather, Christian August of Holstein-Gottorp." "The Rus' also had strong trading ties to Byzantium, particularly in the early 900s, as treaties in 911 and 944 indicate."
