Leda Semyonova was born on 25 June 1939 in Leningrad. In 1967 she graduated from the Department of Philology at the Leningrad University.
Since 1969 she has been working as assistant film editor at the Lenfilm Studio. She has done film editing for over than thirty films.
She has been working with Alexander Sokurov since 1983.
Film editor for the following Sokurov's films:
19861988 Moscow Elegy (with L. Feiginova, T. Belousova, A. Zhikhareva, L. Volkova)
1989 Soviet Elegy
1990 Petersburg Elegy
1990 To the Events in the Transcaucasian Region
1991 An Example of Intonation (with I. Kiselyova)
1992 An Elegy from Russia
1996 Hubert Robert. A Fortunate Life
1997 A Humble Life
1997 The St. Petersburg Diary. Inauguration of a monument to Dostoevsky
1998 The St. Petersburg Diary. Kosintsev's Flat
1998 The Dialogues with Solzhenitsyn
197887 The Lonely Voice of Man (with A. Bespalov, 1978)
198387 Painful Indifference
1986 Empire (with L. Volkova and N. Alexandrova)
1988 Days of the Eclipse
1989 Save and Protect
1993 Whispering Pages
1996 Mother and Son