Painted for the sitter's husband, John, 2nd baron (later 1st viscount) Templetown [1771-1846], Castle Upton, County Antrim; by descent to Henry, 4th viscount Templetown [1853-1939], Castle Upton; acquired c. 1890 by Baron Alfred Charles de Rothschild [1842-1918], London;[1] by inheritance to his illegitimate daughter, Almina Victoria, Countess of Carnarvon [c. 1877-1969], London; purchased 1923 by (Duveen Brothers, Inc., London, New York, and Paris); sold June 1923 to Andrew W. Mellon, Pittsburgh and Washington, D.C.; deeded December 1934 to The A.W. Mellon Educational and Charitable Trust, Pittsburgh; gift 1937 to NGA. [1] The Rothschild provenance information was kindly provided by Michael Hall, curator to Edmund de Rothschild; see his "Rothschild Picture Provenances" from 1999 and letter of 27 February 2002, in NGA curatorial files, in which he cites relevant documents in The Rothschild Archive, London.