Olga Sergeevna Gaines
type: Person
birth date: 1847-01-01
death date: 1927-10-29
nationality: Russian Empire
spouse: Alexander Konstantinowitsch Heins
has occupation: public figure
has occupation: patron of the arts
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additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
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  api version: v1
  served at: 2026-08-16T23:12:22.686613Z
  entity updated at: 2026-05-03T16:20:22.557058+00:00Z
  entity created at: 2026-05-03T13:49:28.734932+00:00Z