Susanna Avery-Quash is Senior Research Curator (History of Collecting) at the National Gallery, UK, where she is responsible for activities associated with the Gallery's research strand 'Buying, Collecting and Display'. Her recent publications concerning the history of collecting and the art market include three co-edited volumes which each appeared in 2019: London and the Emergence of a European Art Market, 1780-1820, The Georgian London Town House: Building, Collecting and Display and Leonardo in Britain: Collections and Reception History.

Barbara Pezzini is an art and cultural historian who has written extensively on European Old Masters and British art of the period 1830-1970. Barbara has previously worked as Editor of Visual Resources and in curatorial, research and archival projects for the National Gallery, National Trust, Burlington Magazine and the Art UK Sculpture Project.