question: Where was the wife of Lev Karakhan born?
context: Title: Marina Semyonova
  Passage: Marina Timofeyevna Semyonova (– 9 June 2010) was the first Soviet-trained prima ballerina. She was born in Saint-Petersburg. She was named a People's Artist of the USSR in 1975.
  Title: Lev Karakhan
  Passage: Lev Mikhailovich Karakhan ("Karakhanian") Armenian Կարախանյան Լեւոն Միքայելի, Russian Лев Михайлович Карахан (20 January 1889, Tiflis – 20 September 1937, Moscow) was a Russian revolutionary and a Soviet diplomat. A member of the RSDLP from 1904. At first a Menshevik, he joined the Bolsheviks in May 1917. In October 1917, he was member of the Revolutionary Military Council; then served as secretary of the Soviet delegation at the Brest-Litovsk peace talks together with Leon Trotsky and Adolph Joffe. In 1918-1920 and 1927–1934, he was the Deputy People's Commissar for Foreign Affairs. In 1919, he issued a statement concerning relations with China called the Karakhan Manifesto. In 1921, he was the Soviet Ambassador to Poland; in 1923-1926, the Ambassador to China; after 1934, the Ambassador to Turkey. Karakhan was known for his dandyish appearance; Karl Radek is quoted as having "maliciously described" him as "the Ass of Classical Beauty", while a junior colleague, Alexander Barmine, wrote that "Our young staff gave him unstinted admiration, amazed that humanity could produce such perfection. He had a purity of profile such as is seen, as a rule, only on ancient coins. " The British diplomat Robert Bruce Lockhart, who met Karakhan in 1918, described him as: Karakhan was arrested and executed in 1937 during the Great Purge. He was posthumously rehabilitated in 1956. His third wife (the civil marriage), Marina Semyonova, died in 2010.
answer: Petersburg
citations: Lev Karakhan Marina Semyonova