The calendar pages of medieval service books Article Published Version Pickering, F. P. (1980) The calendar pages of medieval service books. Reading Medieval Studies, VI. ISSN 0950-3129 (Monograph) Available at http://centaur.reading.ac.uk/84673/ It is advisable to refer to the publisher’s version if you intend to cite from the work. See Guidance on citing . Publisher: University of Reading All outputs in CentAUR are protected by Intellectual Property Rights law, including copyright law. Copyright and IPR is retained by the creators or other copyright holders. Terms and conditions for use of this material are defined in the End User Agreement . www.reading.ac.uk/centaur CentAUR Central Archive at the University of Reading Reading’s research outputs online READING MEDIEVAL STUDIES MONOGRAPH NO.1 THE CALENDAR PAGES OF MEDIEVAL SERVICE BOOKS by F. P. PICKERING Distributed by the Editors, Reading Medie.'ai Studies, Graduate Centre for Mediel'ai Studies, Unil'ersity of Reading. READING MEDIEVAL STUDIES THE CALENDAR PAGES OF MEDIEVAL SERVICE BOOKS AN INTRODUCTORY NOTE FOR ART HISTORIANS BY F. P. PICKERING former Director of THE GRADUATE CENTRE FOR MEDIEVAL STUDIES UNIVERSITY OF READING Co.NTENTS Page (Introductory ) 3 1 . The Perpetual Calendar 3 2. The Dominical Letter 6 3. The Dominical Letter applied to the Year 7 4. The Golden Numbe r 9 5. Dates in the Medieval Calendar 10 APPENDIX Four Medieval Calendors Introductory Remarks and Bibliographical Note 13 A. The Four Colendars. Common and Shared Features 14 B. St Albans Psa Iter. Spec iol Features 15 I. Epoct and Embolism 15 2. Concurrents and (eguloris feriolis (etc.) 18 c. Description of Individual Calendars 19 I. St A [bons Pso Iter. The Co lender proper 19 2. St Albans Psaltp.r. Computisticol Tables 25 3. Les Belles Heures de Jean Duc de Berry 29 4. Les Grandes Heures de Jean Due de Berry 30 5. les Tr~s Riches Heures du Duc de Berry. The January Co lender Page 32 6. les Tres Riches Heures. The Zodiaca l Tympani 34 Concluding Remarks 3B Acknow ledgments 41 This Note is intended a!. on introduction to its declared subject, but I believe thot even in the most bosic of its opening statements it begins to fill gaps in the account!. of the Christian calendar readily available to students of art history - and historians may find it useful too. At any rate it contains information that I myself lacked in my early days and, despite expectations, never picked up incidentally in over twenty-five years af reading histories of medievalort monographs and facsimile editions devoted to individuol psalters and books of hours and descriptive catalogues of medieval manu­ scripts. As for accounts of the Church calendar in standard reference works - encyclopaedios and ODCC (Oxford Dictionary of the Christian Church), and introductions to the Missal and the Baok of Common Proyer - they are, how­ ever infOnTIative, of little help to the peruser of the calendar pages in medi­ eval service books. One becomes aware, in one's search for information, of a conventional (and no doubt proper) ossumpt ion that the organization of the Church's 'perpetual calendar' is still a matter of common knowledge . In informal enquiry I have been able to satisfy myself that this is no longer the case, if ever it was since the introduction of printed annual issues of the Church's calendar, with all the principal feasts, fixed and moveable, duly entered. This is also a 'prefatory' introduction. It says what I think needs to be said before the professional art historian or some other specialist (liturgist, ecclesiastical historian) takes over to tell his own particular story. The art historian, for instance, will wont to point out, in the brood middle column of a medieval calendar page, the feasts of saints of local veneration, and added obits of obbots and patrons. Such items provide clues to the dote and provenance of the service book he happens to be discussing. He will then describe the decoration and illumination of the calendar pages in suc­ ces~ion, and the illustrations : the treatment of the signs of the zodiac, and, even more certainly, the representations of the 'labours of the month'. About such motters this Note will have little to say. It will deal mainly with 'all those Abc d's and roman numerals'. We should like, I believe, to know a little more than thot they ore 'dominical letters, golden numbers, kalends, nones, etc.' First of all, why are they there at all? We should surely then wont to pursue them further, when we leam that the same symbols ore also to be found elsewhere. This Note will accordingly look that little further - to the historian's chronological tobles. 1. The Perpetual Colendor The observation that reference works soy next to nothing obout the perpetual calendar is likely to have caused some surprise. I mean that (to the extent that I hove them to hand) they do no t offer on article so headed, 3 or, under 'calendar', a section on '.the perpetual calendar'. 1 The NED ( ~=~ . English Dictio~ ) possibly offers a clue . It li sts Gardener's, Racing, and Newgate Calendars under 'calendars': they are acknowledged calendars. For the perpetual calendar one has to look under 'perpetual': that is some­ thing a calendar may be, provided that it is 'one that may be adjusted so as to supply information for any year or for many years'. Strictly speaking the Church's is evidently~, not ~.b= perpetual calendar. Strangely, it must therefore seem, it is in a most unlikely place, namely, the Oxford Companion to English literoture-, that one may come across an excellent account of the calendar - under the title 'The Perpetual Calendar'. It will be found there as Appendix IV. I do not know how students of English literature have fared with it in years past, but after reading it twice in succession, annually, for about five years, 1 began to understand it well enough to be able to exploit it (gratefully) for parts of this Note. It specifies, or at any rate alludes to, most of the 'ad justments' which have to be made to keep the calendar 'perpetually' useful, but in the main leaves the reader to infer why it was potentially perpetual in the first place. And perhaps one should observ~ that what it prints out in six (where required, seven) columns, for fifteen pages under the running heading 'Perpetual Calendar', is more readily acceptable as a continuous chronological table. A line of print is devoted to every year from AD 1066 down to the most recent past (1936). It is likely, I think, to be of greater use to students of history. Be that as it may, Appendix IV is a splendid, but possibly neglected, guide to the calendar. The reason for the more rudimentary approach here (from one step further back) is thot the art historian needs to be led first towards the calendar as the image he will encounter: the typical calendar page in service books . This is on image very different from the historian's chronological tables, or the prayer book's tables for the calculation of Easter until the middle of the next millennium. We sholl concentrate on the appearance (loy-out) of the perpetual calender-by-months. That is what we see in medieval service books and books of hours - in manuscript rooms, or in facsimile editions, or in isolated colour plates in more general works. let us turn now to the organization of the calendar. What makes the Church's calendar perpetual is its inclusion of feasts of fixed dote 1. The latest edition of the Encyclopaedia Britannica has in fact such o sub-section (vol.ii 445), but it offers no definition of 'perpetual calendar', and the colourful table it presents, which 'provides a means of finding the day of the week for any dote in 0 wide range of years', is not 0 calendar in the ordinary sense of the term. One has to go a long way down the list of definitions of 'calendar' to find one that would admit such a compilation. 4 (Christmas, Circumcision, Epipf:lony, Nativity of the Virgin, of ...bhn the Baptist, etc., and - saving clashes, for which most elaborate provision is mode elsewhere - saints' days); and its exclusion of any feast or period de­ pendent on Eoster (which may itself fa ll on any dote between 22 March and 25 April): that is some dozen feasts (and, secondari ly, associoted 'terms' and holidays). Many of these feasts bear traditional names incorporating the name of a day: Shrove Tuesday, Ash Wednesday, Good Friday, etc. Some of OUf Tuesdays (etc.) will thereFore move with Easter, whilst 'ordinary' Tuesdoys retreat by single steps in relotion to the 365-doy year. The perpet­ ual calendar can accordingly not employ these doy-names ot all. It uses the letters A to G to mark days 1 to 7 of the week - see 'dominical letter' below. The calendar has. clearly in time post called for a good deal of planning, and the Christian Church, though inheriting in the so-called 'Julian' colendar mony Romon solutions, had the additional problem of Easter. The sum of difficulties in the Christion era includes the incidence of leop year, the differences of length (number of days) between the calendar months, and between calendar and lunar months, not to speak of 'ecclesiastical new moons' and 'real new moons' - a final distinction which can be reserved for the Appendix, below. We sholl co~sider only those items of information which appear as regular conventional symbols or entries in the calendar as displayed.