Final answer:
The grandnephew of Ivan the Terrible's wife, Anastasia, started the Romanov Dynasty, which ruled Russia from 1613 to 1917.
Step-by-step explanation:
The grandnephew of Ivan the Terrible's wife, Anastasia, started the Romanov Dynasty. This ruling family began after the Time of Troubles and the last Rurik ruler's death without an heir. The Romanovs ruled Russia from 1613 until the abdication of Tsar Nicholas II in 1917, due to the Russian Revolution, marking the end of the imperial rule in Russia. They rose to prominence in a period of great change and challenge for the Russian state, including efforts to modernize the country, military conflicts, and internal unrest. The Romanovs' connection to Ivan the Terrible underscores the continuity and shifts in Russian monarchy and its relationship with the church and society from the 16th century till the early 20th century.