As mentioned, most of the usual updates are going through Twitter, @cokldb, but Chigi D.V.71  from the Biblioteca Apostolica Vaticana  is far to complex to explain in 280 characters.  First some numbers, this is the 18th MS from the BAV, and it was made in Toulouse, though liturgical Use of Rome, circa 1335-42.   After the January and February calendar pages there are Latin passages, written in red, on calculating the date of Easter.

The calendar is unusually large in several measures.  Each entry takes 2 ruled lines, with the dominical letter, golden number and roman number on the first line and the roman part stretched across both, sometimes even three.  The stretched Roman part is not unusual, but the double-line entry is unique.  This layout means that each month takes 2 full folios, 4 sides, leading to a calendar 24 pages long.  The decoration is rather sparse, but standard mid 14th Century, with a border and a few leaves on the first face of the month and nothing on the other three.  This layout allowed the scribe to load the calendar with saints, there are approximately 480 distinct feasts, with 9 dates carrying three.  August 22 has four distinct feasts: the Octave of the Assumption(469), and three distinct martyrs, Thimothy(478), Hippolytus(471), and Symphorian(477).  For context, a fully populated calendar has between 365 and 380 saints, and the previous MS with the densest calendar hit 401.  Not surprisingly, this calendar has a number of hapax saints, 30 new saints and 48 unidentified ones.

The calendar decorations are less unusual, rod borders with sparse foliage, some of in intruding into the text block.  There is no KL to start the page, in its place there's a small miniature of the labor of the month, backed with burnished gold.  To ornament the dominical "A" there's some small amount of red or blue penwork.

Note that this MS makes approximately 250 devotional calendars added to the DB since December 2015.

(DB Id: 381)

With the addition of Vatican Reg.lat.165, we have verified that 4 saints in a single date now loads and processes correctly.  Taking a step backwards, this is a Use of Rome hours with a Calendar from Aquilla (probably) that may have been owned by Queen Christina of Sweden.  The calendar is either unfinished or the scribe was confused, each entry is missing the initial letter, eg. "pyphania do" for Jan-6, missing the initial "E".  For testing, though, August 22 (see f.6v below) is the critical date, having entries for Sts. Hyppolitus (471), Timothy (478) and Symphorian (477), and the Octave of the Assumption (469).  This was entered into the new 4-saint Excel template  and it loaded and displayed cleanly!

(DB Id: 149)

This is the most recent addition of a large block that I have not yet discussed. I am hoping to catch up on delayed commentary soon

Latin 3780, from the Biblioteca Apostolica Vaticana, is a late 15th C book made in Lyon, Use of Rome. We know it was made for one of the Italian merchants based in that city. It was made either in 1478 or 1479, based on a Golden Number table on f.14v which starts with the indications for 1479.

The calendar is very sparse, with 115 entries in total. There are very few distinctive entries, though St Livinus, bishop 288, on November 12 is uncommon. There are several unusual orthographies, Aghate for Agathe, and Ad cathedra petri for the more common Cathedra sci petri. Apart from a few instances of miscounting, there appear to be almost no errors, and no instances of a saint being bumped by a higher-ranked feast.

(DB Id: 276)

Taking a break from the e-codices stuff, the Vatican uploaded one of their Sanvito Books, Vat.lat.9490.  This one is both Use of Rome and made in Rome, and entirely on purple vellum.  The calendar is written in gold and silver, with silver for the high-importance feasts and gold for the regular.  The calendar is exceptionally accurate, 2 saints are offset a single day and not a single one is unidentifiable, out of 205 entries.  There is a decidedly Fransiscan slant to the saints, with the feast of his Stigmatization(3722) and the Translation of St. Clare(3359), both in silver, and the Octave of his Feast(3992) and the feast of Peter Martyr(273), both in gold.  In an unusual bit of scribal whim, some few saints are written as "Saint Martyr Name", versus the more common "Saint Name Martyr", for example see Trifonis & Respici on November 10, below f.13r

(DB Id: 251)

W.173 is another French book from the new website of the Walters Art Museum. This one is Use of Rome, but the calendar, in French, is somewhat non-specific.  With only 110 saints consisting of a smattering of Dutch, French and Fransiscans, it has not been localized.  As seems to be somewhat common in French books, there are no Vigils in the first half of the year, the first being that for the Nativity of John the Baptist (June 23, see f.3v below).

(DB Id: 200)

BNE Mss/176 is a late 16th century, dated to 1585 on the title page, Book that was made for the Duchess of Feria, Iuana Dormer (Jane Dormer, former lady-in-waiting to Mary I of England).  The hours is Use of Rome, stated on the same title page, but the place of creation is not listed in the catalogue.  The calendar is unusual in layout for several reasons: the dating information is only modern day numbers, not Roman, and only the dominical letters join the numbers; The title block for each month is simply the name of the month and the short verses, no "KL"; and the months are continuous, rather than a month starting at the top of a new folio(See start of June below, f.4v).  There are additions from a later hand in January-March indicating duple feasts and adding in a few saints.  The saints of the original campaign are very accurate, only 2 of the 206 saints seem to be on the wrong day.   With regards to orthography, there are very few abbreviations/suspensions in the text, virgin, martyr and even confessor are often written out and it has the late pattern(cf. LoC Rosenwald 10 or BnF Latin 10558) of inserting an 'ae' digraph wherever possible, sometimes creating near nonsense "Judae" for "Jude" or "Caeciliae" for "Cecilia".  

(DB ID: 184)

At first blush Harvard's Houghton Library ms Lat 132 is a somewhat unremarkable Use of Rome Hours from Bruges.  Though it has 12 lovely miniatures in the style of the "Gold Scrolls group", the calendar is rather boring, red and black with red strikethroughs for medium-importance days like vigils.  It was updated at least 2 seperate times, with a second hand writing in black Gothic similar to the original and a third hand in a later batarde .  Hidden in it, however, is an interesting clue to the literacy of its owners, October 9th(see f.Fv below).  Written in red, this is the Feast of St. Denis, patron of the eponymous cathedral just north of Paris and the martyr for whom Montmartre is named. Denis is a adaptation of his actual Greek/Latin name, Dionysus. The first scribe wrote Dyonisi Epi (Dionysus Bishop), as expected for a calendar in Latin, but the second scribe appended "S. Denis", either not understanding that they are the same, or for a patron who might not know the Latin.

(Link to the DB: 135)

Bibliothèque nationale de France Nouvelle acquisition latine 3209 is another slightly odd, recently acquired Book of Hours.  This one is Use of Rome, but calendar specific to Autun, and dated to right around 1450-1460.  The calendar has several very specific-to-Autun entries, such as the “Revelation to St. Lazarus” on October 20(see in red f.5v below) and the “Dedication of the Church of St. Lazarus” on December 30th.  The Cathedral of Autun is dedicated to St. Lazarus and has many of his relics, though in the early Middle Ages there was some confusion as to which Lazarus they had.  This calendar is also somewhat unusual in calling out the Egyptian Days, which were thought to be especially inauspicious (see Oct 3 and 23). (See in the DB: 143)

The Very Small Hours of Anne de Bretagne, Bibliothèque nationale de France Nouvelle acquisition latine 3120, is a fascinating tiny use of Rome book of hours from the last 15th Century.  It was made in Paris and illuminated by Jean d'Ypres.  The calendar is not complete, but very full, with 259 saints and 60 in gold.  There are some interesting liturgical notes in the calendar, like the comment "Ultimu[m] Pascha" (the last possible day for Easter) April 24th (f.5v below).  Note that it is right-justified with line-filler on the left.  This is common throughout the calendar for liturgical notes, Vigils and Zodiac indications. (See in the DB: 142)

Harvard's Houghton Library MS Typ 553 is a weird Use of Rome Book from the late 15th century, only localized to "Northern Italy".  The calendar is unevenly populated, 5 saints in March compared to 20 in January, and has a very large proportion of "high" importance (red) names, more even then normal rank saints. In addition to the usual saints, there are also most of the zodiac signs indicated as well as some here to for yet unidentified liturgical indications(see line 12 in May, f3r below).  The scribal work is also unusual, there is no horizontal ruling at all, so the saints are often not alligned with the date information.