Studio of Sir Thomas Lawrence PRA (1769-1830) Portrait of Mrs William Lock (1750-1832), of Norbury Park, half length, wearing a grey dress, white fichu and white lace mob cap, a nosegay of violets at her bosom Oil on canvas 75 x 62cm Provenance: Frederick Hervey, 1st Marquess of Bristol (1769-1859), and by descent; Sotheby's, Ickworth House, Bury St Edmunds, 'The Ickworth Sale', 11-12 June 1996, Lot 452; Wood Hall, Arkesden, Essex. Frederica Augusta Lock was the youngest daughter of Sir Luke Schaub. She married William Lock of Norbury Park, Surrey, who was painted several times by Lawrence. William Lock was an important collector and supported Lawrence’s career from his earliest days. Lawrence painted Mrs Lock in 1829 and his original portrait, exhibited that year at the Royal Academy, is now in the Nelson-Atkins Museum of Art, Kansas City, Missouri, USA. Condition report: Oil on canvas which has been lined. The canvas is in plane with good tension. The paint layer is in a good condition overall, there is a slightly uneven texture in localised areas due the artists' choice of materials and technique. The varnish layer is very uneven, notably in the background where it appears matte and brushy. The frame is in a good condition.