Coco Chanel
That's right, there was never formally a Mr. Coco Chanel. The fashion designer kept her riches to herself even up until the end. As a multi-millionaire, why would she need a husband?
Back in her day, remaining unmarried was ghastly and confusing to the public. She was asked about her marital status in many interviews, especially why she chose to never get married. She had multiple long-term relationships but she always broke it off. Her answer? "In order to be irreplaceable, one must always be different."