<a href="https://en.wikipedia.org/wiki/Alexei_Petrovich,_Tsarevich_of_Russia" id="mwYw" rel="mw:WikiLink" title="Alexei Petrovich, Tsarevich of Russia">Alexei Petrovich, Tsarevich of Russia</a>, <a href="https://en.wikipedia.org/wiki/Peter_the_Great" id="mwZA" rel="mw:WikiLink" title="Peter the Great">Peter the Great</a>'s son, mysteriously dies after being sentenced to death by his father for plotting against him.