Robert Browning wrote his poem "My Last Duchess" as a dramatic monologue to provide a unique perspective on the character of the Duke and to explore themes of power, control, and the objectification of women. By using the format of a dramatic monologue, Browning allows the Duke to reveal his thoughts, emotions, and motivations directly to the reader, creating a more intimate and engaging experience. Through this technique, Browning captures the complex psychology and moral ambiguity of the Duke, enabling the reader to delve into his mind and gain insight into his twisted sense of control and possessiveness, as well as his disregard for the agency and autonomy of his deceased wife. The dramatic monologue form also allows Browning to offer a critical commentary on societal attitudes towards women, particularly in terms of their treatment as objects or possessions of powerful men. Overall, the choice of a dramatic monologue exemplifies Browning's mastery as a poet and his ability to illuminate the darker aspects of human nature and societal dynamics.
