Ivan Platonovich Kalyayev (July 6, 1877 - May 23, 1905) was a Russian poet, terrorist and member of the Socialist-Revolutionary Party, who assassinated Grand Duke Sergei Alexandrovich and was subsequently hanged. Kalyaev was born in Warsaw into the family of a police inspector. He attended Saint Petersburg University from (1897), but soon became involved in student protests, was briefly imprisoned, … Wikipedia
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