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

Jackie Bezos, who has died aged 78, helped to launch her son Jeff on the path to becoming a multi-billionaire by providing an initial investment of $245,000 to create the online retailer Amazon.

Jackie Bezos, a fierce protector of her son Jeff before he founded Amazon.com and a deep-pocketed advocate for early childhood education, has died. She was 78.