Jeff Bezos Announces His Mom, Jackie Bezos, Has Died at 78

Amazon billionaire Jeff Bezos is mourning the loss of his mom, Jackie Bezos.

In a Thursday Instagram post, Bezos wrote, "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. 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. For the rest of her life, that list of people to love never stopped growing. She always gave so much more than she ever asked for."

He went on, "After a long fight with Lewy Body Dementia, she passed away today, surrounded by so many of us who loved her — her kids, grandkids, and my dad. I know she felt our love in those final moments. We were all so lucky to be in her life. I hold her safe in my heart forever."

Bezos' new wife, Lauren Sanchez Bezos, commented, "We will miss her SO much. Love you ❤️💔."

Celebs who responded with their condolences included Sharon Stone, who wrote that she recently lost her mom, too; Antonio Banderas, who expressed his sympathies in Spanish; and Naomi Campbell.

Jackie was her son's biggest fan, and supported him by co-founding the Bezos Family Foundation with him.

She is survived by her husband, Mike Bezos; all three of her kids — Jeff, Christina and Mark; 11 grandkids; and one great-grandchild.

The family has encouraged anyone moved to remember Jackie to do so by donating to a nonprofit.