
Venetian Palace dates from 1879/1880.

Venetian Palace, Gallatin 1912 repr.
It is fully catalogued in MacDonald 1995 (cat. rais.) [more] (cat. no. 729).

Venetian Palace, Gallatin 1912 repr.

Venetian Palace, Gallatin 1912 repr.
Whistler sat in a gondola looking east under a bridge, the Ponte de l'Anzolo, to sketch the Palazzo Soranzo in the sestiere of San Marco/Castello, in Venice, Italy. A detail of the same building is seen in Venetian Palace m0730. 1

Venetian Palace, Gallatin 1912 repr.
It is possible that Venetian Palace m0729 and Venetian Palace m0730were related to the drypoint Nocturne: Palaces [200]
See details in MacDonald 1995 (cat. rais.) [more] (cat. no. 729).
It was not, as far as is known, exhibited in Whistler's lifetime.
1: Grieve 2000 [more], p. 97, repr. pl. 109 as 'Sketch of the Palazzo Soranzo', view repr. pl. 110.