Plans and Elevations of Windsor Castle and its Estate Buildings numbered and variously inscribed including; 'a View of Queen Elizabeth, King Henry VII, and King Charles II Buildings and King John Tower Upper Ward, Windsor Castle; South elevation from Hen

Ashton, who studied under Sir Robert Smirke, was employed for most of his career by Sir Jeffrey Wyattville and then took over much of Wyattville's work after his death in 1840. He is best known for the stables that were erected to his design at Windsor Castle and the Kennels at Frogmore. This set of watercolours of Windsor fall into two groups, plans relating to Henry Ashton's 'Illustrations of Windsor Castle by the late Sir Jeffrey Wyattville', published in two volumes in 1841, and perspective views related to 'Architectural Illustrations of Windsor Castle by Michael Gandy and Benjamin Baud, Architects', published in 1842. All the drawings are probably from Ashton's office; others are now in the Paul Mellon Collection, Yale Centre for British Art, New Haven.