Early in September Byron returned to La Mira, bringing the countess with him. A month later he was surprised by a visit from Moore, who was on his way to Rome. Byron installed Moore in the Mocenigo palace and visited him daily. Before the final parting (October 11) Byron placed in Moore's hands the MS. of his Life and Adventures brought down to the close of 1816. Moore, as Byron suggested, pledged the MS. to Murray for 2000 guineas, to be Moore's property if redeemed in Byron's lifetime, but if not, to be forfeit to Murray at Byron's death. On the 17th of May 1824, with Murray's assent and goodwill, the MS. was burned in the drawing-room of 50 Albemarle Street. Neither Murray nor Moore lost their money. The Longmans lent Moore a sufficient sum to repay Murray, and were themselves repaid out of the receipts of Moore's Life of Byron. Byron told Moore that the memoranda were not "confessions," that they were "the truth but not the whole truth." This, no doubt, was the truth, and the whole truth. Whatever they may or may not have contained, they did not explain the cause or causes of the separation from his wife.

At the close of 1819 Byron finally left Venice and settled at Ravenna in his own apartments in the Palazzo Guiccioli. His relations with the countess were put on a regular footing, and he was received in society as her cavaliere servente. At Ravenna his literary activity was greater than ever. His translation of the first canto of Pulci's Morgante Maggiore (published in the Liberal, No. IV., July 30, 1832), a laborious and scholarly achievement, was the work of the first two months of the year. From April to July he was at work on the composition of Marino Faliero, Doge of Venice, a tragedy in five acts (published April 21, 1821). The plot turns on an episode in Venetian history known as La Congiura, the alliance between the doge and the populace to overthrow the state. Byron spared no pains in preparing his materials. In so far as he is unhistorical, he errs in company with Sanudo and early Venetian chronicles. Moved by the example of Alfieri he strove to reform the British drama by "a severer approach to the rules." He would read his countrymen a "moral lesson" on the dramatic propriety of observing the three unities. It was an heroic attempt to reassert classical ideals in a romantic age, but it was "a week too late"; Byron's "regular dramas" are admirably conceived and finely worded, but they are cold and lifeless.

Eighteen additional sheets of the Memoirs and a fifth canto of Don Juan were the pastime of the autumn, and in January 1821 Byron began to work on his second "historical drama," Sardanapalus. But politics intervened, and little progress was made. He had been elected capo of the "Americani," a branch of the Carbonari, and his time was taken up with buying and storing arms and ammunition,