A neoclassical sculptor of international fame, he worked mainly in Italy. When he returned to Denmark in 1838, he was received as a national hero. The Thorvaldsen Museum was built to house his works next to Christiansborg Palace.
En route to St Petersburg in 1848, it is likely that the Whistlers visited the Thorwaldsen Museum, and on 22-3 September 1848 Whistler's mother promised to send him a catalogue of it ( A.M. Whistler to J. Whistler, 15, 16 and 18 September 1848, #06363; 22 and 23 September 1848, #06364). Some years later she wrote to the young James that she remembered 'our running up to see the sculpture &c, & how enthusiastic you & Willie were!' (1-2 January 1855, GUW #06488).
It has been suggested that his sculpture might have partly inspired the composition of Arrangement in Grey and Black: Portrait of the Painter's Mother y101.
The Correspondence of James McNeill Whistler, 1855-1903, edited by Margaret F. MacDonald, Patricia de Montfort and Nigel Thorp; including The Correspondence of Anna McNeill Whistler, 1855-1880, edited by Georgia Toutziari. Online edition, University of Glasgow.
MacDonald, Margaret F., (ed.) Whistler's Mother: An American Icon, Aldershot and Burlington, 2003 .
'Bertel Thorwaldsen', Wikipedia.