Platon Vasilievich Pavlov, On the Historical Significance of the Reign of Boris Godunov (Rus.) (Moscow, 1850) Sergyei Mikhailivich Solovev, History of Russia (Rus.) (2nd ed., vols. vii–viii., St Petersburg, 1897). On 15 November 1581, Godunov was present when Ivan murdered his own eldest son, Tsarevich Ivan. Godunov tried to intervene but received blows from the tsar's sceptre. The elder Ivan immediately repented, and Godunov rushed to get help for the tsarevich, who died four days later.
Platon Vasilievich Pavlov, On the Historical Significance of the Reign of Boris Godunov (Rus.) ,(Moscow, 1850) Sergyei Mikhailivich Solovev, History of Russia (Rus.) (2nd ?ed., vols. vii–viii., St Petersburg, 1897). On 15 November 1581, Godunov was present when Ivan murdered his own eldest son, Tsarevich Ivan. Godunov tried to intervene but received blows from the tsar's sceptre. The elder Ivan immediately repented, and Godunov rushed to get help for the tsarevich, who died four days later.