Read it through once

The monologue exhibits great perfection of finish. Its composition was occasioned, as Mr. Furnivall learned from the poet himself (see ‘Browning Society’s Papers’, Part II., p. 161), by the portrait of Andrea del Sarto and his wife, painted by himself, and now in the Pitti Palace, in Florence. Mr. Browning’s friend, and his wife’s friend, Mr. John Kenyon (the same to whom Mrs. Browning dedicated ‘Aurora Leigh’), had asked the poet to buy him a copy of Andrea del Sarto’s picture. None could be got, and so Mr. Browning put into a poem what the picture had said to himself, and sent it to Mr. Kenyon. It was certainly a worthy substitute.