Katharine Rayner was born in East Hampton, New York, United States. Katharine Rayner is #187 in List Billionaires People In The World. Katharine Rayner inherited an estimated 17% stake in media and automotive conglomerate Cox Enterprises from her mother Anne Cox Chambers. Cox Enterprises, a private company started by Rayner's grandfather, has revenues of just over $20 billion. Her siblings, James Chambers and Margaretta Taylor, also inherited an estimated 17% stake each in Cox Enterprises. Neither Rayner nor her siblings or mother have ever had an active role in the company. Her cousin, Jim Kennedy, is chairman of Cox Enterprises.