Yekaterina Kharkov was Ivan Kharkov's mistress and later his wife.
Ivan kept his mistress Yekaterina in an apartment in Paris and invited her, among other people, to his estate in Saint-Tropez, France. Ivan sent Yekaterina away after his wife Elena had her feigned affair and mentioned Yekaterina.
After Ivan divorced Elena, he married Yekaterina and she attended upper-level functions with him. He brought her with him to an airport in Russia where he hoped to re-unite with his children and failed.