Denise now owns half the company with Coates ' son , John owning a quarter .
The internet giant was the brainchild of his daughter , Denise , who persuaded him to explore the possibilities of online betting in 2000 .
Denise now owns half the company with Coates ' son , John owning a quarter .
The internet giant was the brainchild of his daughter , Denise , who persuaded him to explore the possibilities of online betting in 2000 .