Claim: In the premiere of The Merchant Kalashnikov, Tsar Ivan IV was played by Fyodor Stravinsky (the father of Igor Stravinsky), and Alyona Dmitriyevna, Kalashnikov's wife, was played by Wilhelmina Raab.
Evidence: Tsar Ivan IV Fyodor Stravinsky He was the father of Igor Stravinsky and the grandfather of Théodore Strawinsky and Soulima Stravinsky. Alyona Dmitriyevna, Kalashnikov's wife Wilhelmina Raab []