English poet who perfected the dramatic monologue in such works as My Last Duchess and Soliloquy of the Spanish Cloister. ALS, one page, 4.5 x 5.5, March 10, 1871. Browning declines a dinner invitation. In full, “I am unfortunately engaged already to dine on the 21st. I should be delighted to do so were it in my power.” In very good condition, with light overall toning, expected folds, one along top of signature, a few creases and mounting remnants on reverse, lightly showing through. R&R COA.