Title: Arkhiv Feliksa i Iriny I︠U︡supovykh
Subjects: Sources, Assassination, Correspondence
People: F. F. I︠U︡supov kni︠a︡zʹ (1887-1967), Irina Aleksandrovna I︠U︡supova kni︠a︡gini︠a︡ (1895-1970), Grigoriĭ Efimovich Rasputin (1869-1916)