After the death of his elder brother Tsar Aleksandr I, Grand Duke Konstantin Pavlovich was declared Emperor of all the Russias on 1 December 1825. How long did his time on the throne last?
The ans is - 26 days
What caused Richard I of England to be out of the country between 1190 and 1194, when his younger brother John tried to take control?
Which claimant to the Kingdoms of England and Ireland was de facto monarch of England after the death of Edward VI for just over a week in July 1553, and was executed in 1554?
