Robert Browning sets the tone of "My Last Duchess," by using three significant poetic techniques, one of which is imagery. Browning uses the Duke's monologue to sketch out images in the reader's mind of the Duchess herself, and the sinister personality of the Duke. Browning also uses another key device, which is diction to illustrate the darkness in this poem. Browning's careful word choice adds to the description of the Duchess and perhaps her disgraceful behavior, as well as the Duke's terrifying jealousy, and expectations. Finally, Browning also uses symbolism, which is instrumental…
