If you describe a man as the king of something, you mean that he is the most important person doing that thing or he is the best at doing it.
首屈一指的男性; 佼佼者
It belongs to King Grisly-beard; hadst thou taken him, it had all been thine.
这是画眉嘴国王的;如果你嫁给他,那它就会是你的了。