before founding wendy's, dave thomas was a franchise owner in which fast food chain?

Before founding Wendy's, Dave Thomas was a franchise owner in the Kentucky Fried Chicken (KFC) fast food chain. He worked closely with Colonel Harland Sanders, helped turn around failing KFC franchises in Columbus, Ohio, and contributed to marketing and brand development at KFC before starting his own hamburger chain in 1969 named Wendy's after his daughter Melinda "Wendy" Thomas.