Collection / Collection privée / Collection privée d'un laïc  

"Elizabeth Seymour Percy, 1st Duchess of Northumberland, a mid eighteenth-century collector of Books of Hours. Twenty-five Books of Hours from her collection have been recorded at Alnwick. Six were sold in 1948, leaving nineteen still in the archives at Alnwick Castle, Northumberland." (Harthoorn, 2022, p. 31)  

"Nineteen of her Books of Hours remain in the archives at Alnwick [...], both those the First Duchess collected before 1770, recorded in her Musaeum List, and those she collected between 1770 and 1776, the year of her death. The collection is remarkable on a number of counts, not least because it was assembled by a woman in the late eighteenth century, a time when women are not recorded as collectors of books, and some fifty years before Books of Hours gained in popularity. The Books of Hours themselves are also remarkable both for their diversity, each of them being different, and for the quality of their miniatures. All of them were produced in the late fifteen or early sixteenth century, either in France, the Northern Netherlands or the Southern Netherlands. It seems that the First Duchess probably appreciated both the quality of the miniature art collections that her Books of Hours contain and the Gothic nature of the artwork." (Harthoorn, 2022, p. 60-61)