In June 1941 Nazi Germany invaded the Soviet Union. Botvinnik's wife Gayane, a ballerina, told him that her colleagues at the Kirov Opera and Ballet Theatre were being evacuated to the city of Perm, then known as Molotov in honour of Vyacheslav Molotov. The family found an apartment there, and Botvinnik obtained a job with the local electricity supply organization – at the lowest pay rate and on condition that he did no research, as he had only a Candidate's degree. Botvinnik's only child, a daughter named Olya, was born in Perm in April 1942.