1. Heslop , “Origins” (n. 31 above). For the manuscript, see Henry Avril , The Eton Roundels (Aldershot, UK, 1990), especially at 32–43 for the connection to Worcester. Other institutions followed suit in having Marian seals, including Great Malvern priory — a Worcester dependancy — Reading, Abingdon, Pershore, and Kelso abbeys, and Lincoln Cathedral, all in the first half of the twelfth century, but Worcester seems to have been the first. See Heslop T. A. , “The Virgin Mary's Regalia and Twelfth-Century English Seals,” in The Vanishing Past: Studies of Medieval Art, Liturgy and Metrology Presented to Christopher Hohler , ed. Borg Alan and Martindale Andrew (Oxford, 1981), 53–62, at 56–58; and idem, “The Romanesque Seal of Worcester Cathedral,” in Medieval Art and Architecture at Worcester Cathedral (Leeds, UK, 1978), 71–79.
2. Osbert of Clare, the Sarum Breviary, and the Middle-English Saint Anne in Rime Royal
3. See Clayton , Apocryphal Gospels , 129–30, for the Protevangelium, and 319–22 for a transcription of the text. See also Gransden Antonia , “The Cult of St. Mary at Beodericisworth and Then in Bury St Edmunds Abbey to c. 1150,” Journal of Ecclesiastical History 55 (2004): 627–53, at 642–43; and Webber Teresa , “The Provision of Books for Bury St Edmunds Abbey in the Eleventh and Twelfth Centuries,” in Bury St Edmunds: Medieval Art, Architecture, Archaeology and Economy , ed. Gransden Antonia , British Archaeological Association 20 (Leeds, 1998), 186–93, at 188. The Trinubium is found in Cambridge, St. John's College MS 35 (B. 13) and is discussed in Hall , “Trinubium.”
4. For Honorius's biography, see Flint V. I. J. , Honorius Augustodunensis of Regensburg (Aldershot, UK, 1995).