來源
Ralph Bernal; Christie's, London, 13 March 1855, lot 953, as Mytens (13 gns. to Waters on behalf of the following),
Frederick, 4th Marquis of Londonderry, stepfather of the 7th Viscount Powerscourt, and by descent to,
Mervyn, 9th Viscount Powerscourt, who sold Powerscourt, Enniskerry, together with its contents, to,
Mr and Mrs Ralph Slazenger, 1961,
their sale; Christie's, on the premises, 24 September 1984 [first day], lot 5.