Jeff Bezos mourns mom Jeff Bezos' mom, Jackie Bezos, has died at the age of 78 following a battle with Lewy body dementia. 15 August 2025 Jeff Bezos' mom has died. Jeff Bezos' mom has died The Amazon boss has paid tribute to Jackie Bezos, with whom he co-founded the Bezos Family Foundation, after she passed away at the age of 78 "after a long fight with Lewy body dementia." Jeff wrote on his social media accounts on Thursday (14.08.25): "Her adulthood started a little bit early when she became my mom at the tender age of 17. That couldn't have been easy, but she made it all work.