The Question and Answer section for Black Beauty is a great resource to ask questions, find answers, and discuss the novel.
Rob Roy is the son of Duchess and thus Black Beauty’s brother. He is killed in a hunting accident as he serves his master George Gordon.
I would say comforted and respectful.
Is this the quote you were referring to?
I love horses, and it riles me to see them badly used; it is a bad plan to aggravate an animal till he useshis heels; the first time is not always the last."