 He had the support of Khrushchev he received the Lenin Peace Prize in 1960.However, Thorez managed to block the "aggiornamento" (trend to "bring things up to date") and eliminated Casanova from all governing bodies in May 1961. and Maurice Kriegel-Valrimont were also victims of the purge.He married Danielle Casanova (born Vincentelli Perini), who died heroically at Auschwitz, and later, he married Claudine Chomat, whom he had also known, before the war, in the communist youth movement.