Let's say that when the man who claimed to be Tsarevich Dimitry, son of Ivan, after being successfully put on Russian Throne by the Polish-Lithuanian Soldiers, his Catholic wife ended up converting to Orthodox Christianity, and thus removed the chief source of unrest against his reign.
Whatever happened ITTL may vary, but the end result is that the "Rurik" dynasty have few more Tsars after the (only rumored to be false) Dimitry died peacefully in a rather old age of 60-80s.
With a successful reign of the False Dimitry, what will happen next to the succession?
....
Bonus question, Imagine ITTL Russian Tsars managed to keep the "Rurik" lineage into the ATL 21st Century Present Day, eventually morphing into a Constitutional Monarchy somewhere along the line. As the now 21st century DNA analysis is available, the reigning Russian Tsar decides to let Scientists at ATL University of Moscow to took his DNA sample, and also samples from the known tombs of the past Tsars. It ended up with the Tsar Dimitry I ended up being revealed as definitely not the son of Ivan the Terrible. what happens next?
Whatever happened ITTL may vary, but the end result is that the "Rurik" dynasty have few more Tsars after the (only rumored to be false) Dimitry died peacefully in a rather old age of 60-80s.
With a successful reign of the False Dimitry, what will happen next to the succession?
....
Bonus question, Imagine ITTL Russian Tsars managed to keep the "Rurik" lineage into the ATL 21st Century Present Day, eventually morphing into a Constitutional Monarchy somewhere along the line. As the now 21st century DNA analysis is available, the reigning Russian Tsar decides to let Scientists at ATL University of Moscow to took his DNA sample, and also samples from the known tombs of the past Tsars. It ended up with the Tsar Dimitry I ended up being revealed as definitely not the son of Ivan the Terrible. what happens next?