[1] She went on to the Courtauld Institute of Art, University of London and completed her PhD in 1956, with a thesis on the Baroque Town Hall of Amsterdam (now known as the Royal Palace), which appeared in published form in 1959.
[4] There are also 18 photographs by her on the Courtauld's Art and Architecture website, of locations in Denmark, Belgium and Holland.
[5] After completing her studies, Fremantle moved to the Netherlands, where she worked as an associate professor of Art History at Utrecht University,[1] and later for the Vrije Universiteit Amsterdam.
[2] Her personal archive was donated to the Netherlands Institute for Art History (RKD) in The Hague in the autumn of 2019, as a gift from Jan and Els Jimkes-Verkade of Utrecht.
[6] Van Gelder also encouraged her to publish the journal of the 18th century English painter, James Thornhill, who travelled in the Netherlands in 1711.