This Flemish Book of Hours, entitled Praeces piae, was produced during the second quarter of the 15th century, and has been associated by P.W. Parshall with other books produced for the diocese of Tournai, in modern Belgium. The text provides prayers for the eight hours of the day at which prayers were recited (Matins, Lauds, Prime, Terce, Sext, None, Vespers, and Compline). Illuminations include miniatures of Saints Catherine, Agatha, Barbara, Sebastian, Anthony, and Nicholas as well as other more general religious themes.
Reading the Social and Religious Messages of the Virgin in the Praeces Piae by Katrina Maher (2008) Art History Senior Thesis
CHD Guide to the Facsimile of the Willamette Hours, A complete, annotated transcipt of Willamette's Praeces Piae from the Center for Håndskriftstudier i Danmark.