Mrs Siddons - Thomas Gainsborough - Framed art PrintFramed 18c British art print (40 x 34 cm) by Thomas Gainsborough. Buy this print framed for 160. Buy this print unframed for 50. Framed Size is 40 x 34 cm. Other print sizes and frame styles are available. To buy, or to see more size and frame options, select 'Choose frame'.. About this artwork Mrs. Siddons, who lived from 1755 to 1831, was a highly acclaimed actress of her era, leading her field for three decades. This portrait was created by