In 1847, Herzen emigrated with his wife, mother and children, to Italy never to return to Russia. From Italy, on hearing of the revolution of 1848, he hastened to Paris and then to Switzerland. He supported the revolutions of 1848, but was bitterly disillusioned with European socialist movements after their failure. Hertzen gained his reputation as a political writer. His assets in Russia were frozen due to his emigration, but Baron Rothschild, with whom his family had a business relationship, negotiated the release of the assets, which were nominally transferred to Rothschild.
Also in 1847 were published in Russian periodicals the stories which were afterwards collected and printed in London in 1854, under the title of Prervannye Razskazy (Interrupted Tales). In 1850 two works appeared, translated from the Russian manuscripts, From Another Shore and Lettres de France et d'Italie. In French also appeared his essay Du Developpement des idées revolutionnaires en Russie, and his Memoirs, which, after being printed in Russian, were translated under the title of Le Monde russe et la Révolution (3 vols., 1860–1862), and were in part translated into English as My Exile to Siberia (2 vols., 1855).