Why was col horse named Sophie?

There seems to be a misunderstanding. "Col Horse" is not a common term, and there is no known horse named "Sophie" with a specific connection to that term.

Could you please clarify:

* What is "Col Horse"? Is it a breed of horse? A particular horse known by that name? Or something else entirely?

* Why are you asking about the name Sophie? Is this a name you saw associated with "Col Horse"? Do you have any context about this name?

Once you provide more information, I can help you understand why this horse might have been named Sophie.