What was the name of Cole Thornton's horse in the movie "El Dorado" (1966)?

The appaloosa JW rode in El Dorado belonged to Howard Hawks. Beautiful mount, wasn't it! Yet I think JW didn't much care for Cochise, at one point he said Hawks had no sense for horse flesh. Personally, he liked the horse he rode during the late forties and early fifties, "Banner" was in a lot of westerns with him. I once saw an autographed picture JW gave to his horse wrangler of many films, enscribing it with "Find me another Banner!"

https://www.insp.com/blog/horses-of-hollywood/