Jeff Bezos' mom, Jackie Bezos, has died following a battle with Lewy Body Dementia. She was 78. The Amazon founder, 61, confirmed the news via an Instagram tribute post shared on Thursday, August 14. "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," he wrote. "She pounced on the job of loving me with ferocity, brought my amazing dad onto the team a few years later, and then added my sister and brother to her list of people to love, guard, and nourish.