“My grandfather was my whole world,” Bobby's daughter Sophie Flay wrote in a heartfelt tribute Jim Smeal/BEI/Shutterstock Bobby Flay's father Bill Flay has died at the age of 93, PEOPLE has ...

Bobby Flay is mourning the loss of his late father. The celebrity chef took to Instagram on Tuesday to share a series of throwback photos alongside an obituary he wrote himself for The New York Times.