Bezos announced on Instagram that his mother, Jacklyn, died inside her Miami home after a battle with Lewy Body Dementia.

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Jacklyn Gise Bezos, mother of Jeff Bezos and co-founder of Bezos Family Foundation, died at 78 from Lewy body dementia.

Jeff Bezos posted a tribute on Instagram to his mother, Jacklyn Gise Bezos, after she died Thursday at age 78.