Guido Orlandi. “Prolonged Sonnet (to Guido Cavalcanti). He finds fault with the Conceits of the foregoing Sonnet [Sonnet. Of his Pain from a new Love.]” - Collection Introduction
As DGR's headnote to this extended sonnet shows, he believed it was written in response to the sonnet by Cavalcanti that precedes this one in the 1861 volume of his translations. But it is now known that...