Stand Watie was a real person and Confederate General.
Not sure about Lone Watie. He was a funny character in the movie tho.
All of what you said is true.
I always thought the hollywood character of Lone Watie in “Josey Wales” was probably modeled after or at least a vague reference to the real Stand Watie.
I don’t know why I thought that, but that is what I thought.