Complex sentence: In 1933, Arendt left Germany for Czechoslovakia and then Geneva, where she worked for some time at the League of Nations before leaving for Paris, where she befriended the Marxist literary critic and philosopher, her first husband's cousin.
Split into simpler sentences: In 1933, Arendt left Germany for Czechoslovakia and then Geneva, where she worked for some time at the League of Nations. Then, in Paris, she befriended the Marxist literary critic and philosopher, her first husband's cousin.