Tsarevich Simeon Alexeyevich of Russia

Tsarevich Simeon Alexeyevich (Симеон Алексеевич; 3 April 1665 - 18 June 1669) was the fourth son of Tsar Alexis of Russia and Maria Miloslavskaya, brother of Tsar Feodor III of Russia and Tsar Ivan V of Russia and half-brother of Tsar Peter the Great.