Did Grand Duke Konstantin Pavlovich ever officially rule as Tsar?
No, he never ruled
Yes, for two years
Yes, for one year
Yes, for five years
Answer
No, Grand Duke Konstantin Pavlovich never officially ruled as Tsar. Despite being designated heir to the Russian throne by his older brother, Tsar Alexander I, Konstantin renounced his claim in favor of his younger brother, Nicholas I, who succeeded Alexander upon his death in 1825.
Dive into History: The Life of Grand Duke Konstantin Pavlovich of Russia Quiz