Russian movie, Union of Salvation (2019) English subtitles

set after war with France/Napoleon

 https://youtu.be/E_JiQWe36xM?si=S6teRw9sRHb1feCZ 

 Russian Tsar Alexander I "Alexander I of Russia - Wikipedia"

 https://en.m.wikipedia.org/wiki/Alexander_I_of_Russia then Nicholas I "Nicholas I of Russia - Wikipedia"

 https://en.m.wikipedia.org/wiki/Nicholas_I_of_Russia 

 Amazon movies: Four Kings, trailer....

 https://youtu.be/hXKrvB1KzUI?si=YmIHIdNtGKuTgRqc

Nicholas and Alexander II documentary...

https://youtu.be/bYfXWlflaws?si=ylts_ycZ0JskE1lX

Alexander II 

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