"Alexei Petrovich of Russia (28 February 1690 – 7 July 1718) was a Russian Tsarevich. He was born in Moscow, the son of Tsar Peter I ...
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and his first wife, Eudoxia Lopukhina. Alexei despised his father and repeatedly thwarted Peter´s plans to raise him as successor to the throne. His brief defection to Austria scandalized the Russian government, leading to harsh repressions against Alexei and his associates. Alexei died after interrogation under torture, and his son Peter Alexeyevich became the new heir apparent." - (en.wikipedia.org 30.01.2020)
