And once again, I wonder... 
 How did such a humorous, adventurous woman like the Dowager Duchess have Lord Peter (well, it's obvious that he's his mother's child)...and that (view spoiler)[hypocritical wet blanket (hide spoiler)] Denver? It must be from the father's side. 
 (view spoiler)[I'm not a fan of infidelity. And a man taking advantage of a woman in desperate straits, either. I'm glad she was able to find her own way out at the end, and was more honorable in her consideration for his wife than he even was. (hide spoiler)]