Signed l.l.: Ellis Roberts 1906.
Oil on canvas, approximately 228.6cm by 144.8cm.
Myra Orde Powlett (1879 -1973) the daughter of William, 4th Baron Bolton, married William, 5th Marquess of Exeter K.G. (1876-1956) in 1901. The portrait was painted a year after the birth of a son and heir, David, Lord Burghley.