谁和Maria Osten约会过？

Maria Osten (born Maria Emilie Alwine Gresshöner; March 20, 1908 – August 8, 1942) was a German and Soviet journalist.

She was born in Lemgo, Germany, but grew up in East Prussia. She took a pen name, Osten (German for "East") to indicate her pro-Soviet sympathies.

Mikhail Efimovich Koltsov (Russian: Михаи́л Ефи́мович Кольцо́в) (June 12 [O.S. May 31] 1898 – February 2, 1940), born Moisey Haimovich Fridlyand (Russian: Моисей Хаимович Фридлянд), was a Soviet journalist, revolutionary and NKVD agent. He served as the editor-in-chief of the satirical magazine, Krokodil.