CHD Calendar Studies
Gregorian and Gelasian Kalendars
based on Victor Leroquais: Sacramentaires et Missels manuscrits, I

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The first official calendars distributed from Rome were of vital importance for the later formation of the liturgical year, as the Christian religion spread over Europe. To save time and avoid infinite repetitions, has Victor Leroquais published a list of the contents of the sacramentarium which pope Hadrian send to Charlemagne (Cf. The Gregorian Sacramentary, published by H.A.Wilson for the Henry Bradshaw Society, vol.XLIX, 1915, and by H.Lietzmann: Das Sacramentarium Gregorianum nach dem Aachener Urexemplar, Münster 1921).
As supplement has Leroquais added a number of feasts from a Gelasian sacramentary from Gellone (Paris BN ms.lat.12048, Sacramentaires et Missels manuscrits, I, 1924 p.1-8) from the 8th cent. (Cf. H.Wilson: The Gelasian sacramentary, Oxford 1894). Together is the list the nucleus of all later liturgical calendars, and can guide the student in the process of finding the special saints in any local use. For the student with little experience is it a powerful tool, because it will eliminate almost half of the entries in a normal calendar.
The occurrence of the following saints can be taken for granted (even if several are omitted), and it is a waste of time to note their presence (or absence) in any liturgical calendar, if the primary purpose is to locate the origin or use of the source. The rubricated days are those who are of the highest feast degree everywhere - all the feasts of the Virgin and the two Cross-feasts are nomally also in red. The rubrication of many of the apostles and evangelists are subject to random variations, which rarely have any significance in psalters or books of hours.
Many extremely popular medieval saints, present in every calendar, are not on the list, because they either were unknown at the time, or later vere venerated on different days in each region, like Margaret of Antioch and Barbara (the cult of Saint Katherine dates only from the 12th century).

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		KL		JANUARIUS
01	01	iij	A	Octava Domini [i.e. Circumcisio]	Gregorian
02	01		b
03	01	xj	c
04	01		d
05	01	xix	e	Vigilie epiphanie	Gelasian
06	01	viij	f	Epiphania	Gregorian
07	01		g
08	01	xvj	A
09	01	v	b
10	01		c
11	01	xiij	d
12	01	ij	e
13	01		f	Oct. epiphanie	Gelasian
14	01	x	g	Felicis in Pincis	Gregorian
15	01		A
16	01	xviij	b	Marcelli pp.m.	Gregorian
17	01	vij	c
18	01		d	Prisce v. m.	Gregorian
19	01	xv	e	Marii et Marthe	Gelasian
20	01	iiij	f	Fabiani et Sebastiani m.	Gregorian
21	01		g	Agnetis v. m.	Gregorian
22	01	xij	A	Vincentii m.	Gregorian
23	01	i	b	Emerentiane et Macharii	Gelasian
24	01		c
25	01	ix	d	Conversio Pauli. Preiecti m.	Gelasian
26	01		e
27	01	xvij	f
28	01	vj	g	Agnetis secundo	Gregorian
29	01		A
30	01	xiiij	b
31	01	iij	c
		KL		FEBRUARIUS
01	02		d
02	02	xj	e	Purificatio b. Marie v.	Gregorian [Yppapanti]
03	02	xix	f
04	02	viij	g
05	02		A	Agathe v.m.	Gregorian
06	02	xvj	b
07	02	v	c
08	02		d
09	02	xiij	e
10	02	ij	f	Sotheris, Zotici, Irenei et Iacincti mrm.	Gelasian
11	02		g
12	02	x	A
13	02		b
14	02	xviij	c	Valentini pb.m. - Vitalis, Felicule et Zenonis mrm.	Gregorian, Gelasian: Vitalis, Felicule et Zenonis
15	02	vij	d
16	02		e	Juliane v.m.	Gelasian
17	02	xv	f
18	02	iiij	g
19	02		A
20	02	xij	b
21	02	i	c
22	02		d	Cathedra Petri Antiochie	Gelasian
23	02	ix	e
24	02		f
25	02	xvij	g
26	02	vj	A
27	02		b
28	02	xiiij	c
		KL		MARTIUS
01	03	iij	d
02	03		e
03	03	xj	f
04	03		g
05	03	xix	A
06	03	viij	b
07	03		c	Perpetue et Felicitatis m.	Gelasian
08	03	xvj	d
09	03	v	e
10	03		f
11	03	xiij	g
12	03	ij	A	Gregorii I pape	Gregorian
13	03		b
14	03	x	c
15	03		d
16	03	xviij	e
17	03	vij	f
18	03		g
19	03	xv	A
20	03	iiij	b
21	03		c
22	03	xij	d
23	03	i	e
24	03		f
25	03	ix	g	Annuntiatio b. Marie Virginis.	Gregorian
26	03		A
27	03	xvij	b
28	03	vj	c
29	03		d
30	03	xiiij	e
31	03	iij	f
		KL		APRILIS
01	04		g
02	04	xj	A
03	04		b
04	04	xix	c
05	04	viij	d
06	04	xvj	e
07	04	v	f
08	04		g
09	04	xiij	A
10	04	ij	b
11	04		c	Leonis I pape	Gelasian
12	04	x	d
13	04		e	Euphemie v.m.	Gelasian
14	04	xviij	f	Tiburcii, Valeriani et Maximi	Gregorian
15	04	vij	g
16	04	vij	A
17	04	xv	b
18	04	iiij	c
19	04		d
20	04	xij	e
21	04	i	f
22	04		g
23	04	ix	A	Georgii m.	Gregorian
24	04		b
25	04	xvij	c
26	04	vj	d
27	04		e
28	04	xiiij	f	Vitalis m.	Gregorian
29	04	iii	g
30	04		A
		KL		MAIUS
01	05	xj	b	Philippi et Iacobi apostolorum	Gregorian
02	05		c
03	05	xix	d	Alexandri, Eventii et Theodoli mrm. - Inventio s. Crucis. - Iuvenalis m.	Gregorian, Gelasian: Inventio Crucis. + Iuvenalis.
04	05	viij	e
05	05		f
06	05	xvj	g	Iohannis ante portam latinam	Gregorian
07	05	v	A
08	05		b
09	05	xiij	c
10	05	ij	d	Gordiani et Epimachi	Gregorian
11	05		e
12	05	x	f	Pancratii m., - Nerei et Achillei mrm.	Gregorian, Gelasian: SS. Nerei et Achillei m.
13	05		g	Marie ad martyres	Gregorian
14	05	xviij	A
15	05	vij	b
16	05		c
17	05	xv	d
18	05	iiij	e
19	05		f
20	05	xij	g
21	05	i	A
22	05		b
23	05	ix	c
24	05		d
25	05	xvij	e	Urbani I pp. m.	Gregorian
26	05	vj	f
27	05		g
28	05	xiiij	A
29	05	iij	b
30	05		c
31	05	xj	d
		KL		JUNIUS
01	06		e	Nicomedis m.	Gregorian [Dedicatio s. Nicomedis]
02	06	xix	f	Marcellini et Petri mrm.	Gregorian
03	06	viij	g
04	06	xvj	A
05	06	v	b
06	06		c
07	06	xiij	d
08	06	ij	e
09	06		f	Primi et Feliciani mrm.	Gelasian
10	06	x	g
11	06		A
12	06	xviij	b	Cyrini, Naboris, Nazarii et Basilidis mrm.	Gelasian
13	06	vij	c
14	06		d
15	06	xv	e	Viti m.	Gelasian
16	06	iiij	f
17	06		g
18	06	xii	A	Vigilie ss.Gervasii et Prothasii	Gelasian (The solemn vigils of this feast were not accepted everywhere)
19	06	i	b	Gervasii et Prothasii	Gregorian
20	06		c
21	06	ix	d
22	06		e
23	06	xvij	f	Vigilie s.Iohannis bapt.	Gregorian
24	06	vj	g	Iohannis baptiste	Gregorian
25	06		A	Vigilie ss. Iohannis et Pauli	Gelasian (The vigils were not generally accepted)
26	06	xiiij	b	Iohannis et Pauli mrm.	Gregorian
27	06	iij	c
28	06		d	Leonis pp. Vigilie	Gregorian
29	06	xi	e	Petri apostostoli	Gregorian
30	06		f	Commemoratio Pauli apostoli	Gregorian
		KL		JULIUS
01	07	xix	g
02	07	viij	A	Processi et Martiniani mrm.	Gregorian
03	07		b
04	07	xvj	c
05	07	v	d
06	07		e	Octava Petri et Pauli	Gregorian
07	07	xiij	f
08	07	ij	g
09	07		A
10	07	x	b	Septem fratrum	Gregorian
11	07		c	Benedicti ab.	Gelasian
12	07	xviij	d
13	07	vij	e
14	07		f
15	07	xv	g
16	07	iiij	A
17	07		b
18	07	xij	c
19	07	i	d
20	07		e
21	07	ix	f
22	07		g
23	07	xvij	A
24	07	vj	b
25	07		c	Iacobi apost.	Gelasian
26	07	xiiij	d
27	07	iij	e
28	07		f
29	07	xj	g	Felicis II pp. Simplicii, Faustini et Beatricis	Gregorian
30	07	xix	A	Abdon et Sennen mrm.	Gregorian
31	07		b
		KL		AUGUSTUS
01	08	viij	c	Petri ad vincula. - SS.Machabeorum	Gregorian, Gelasian: Machabei
02	08	xvj	d	Stephani I pp.m.	Gregorian
03	08	v	e
04	08		f
05	08	xiij	g
06	08	ij	A	Sixti II pp.m. - Felicissimi et Agapiti mrm.	Gregorian
07	08		b	Donati ep.m.	Gelasian
08	08	x	c	Cyriaci m.	Gregorian
09	08		d	Vigilie s. Laurentii	Gregorian
10	08	xviij	e	Laurentii m.	Gregorian
11	08	vij	f	Tiburcii m.	Gregorian
12	08		g
13	08	xv	A	Hippolyti m.	Gregorian
14	08	iiij	b	Eusebii pb.cf. - Vigilia	Gregorian
15	08		c	Assumptio b. Marie Virginis.	Gregorian
16	08	xij	d
17	08	i	e	Oct. Laurentii	Gelasian
18	08		f	Agapiti m.	Gregorian
19	08	ix	g	Magni m.	Gelasian
20	08		A
21	08	xvij	b
22	08	vj	c	Timothei m.	Gregorian
23	08		d
24	08	xiiij	e	Bartholomei apost.	Gelasian
25	08	iij	f
26	08		g
27	08	xj	A	Rufi m.	Gelasian
28	08	xix	b	Hermetis m., - Augustini ep.cf.	Gregorian, Gelasian: Augustini
29	08		c	Sabine v.m. - Passio s.Iohannis bapt.	Gregorian, Gelasian: Passio Iohannis bapt. (i.e. Decollatio)
30	08	viij	d	Felicis et Adaucti mrm.	Gregorian
31	08		e
		KL		SEPTEMBER
01	09	xvj	f	Prisci m.	Gelasian
02	09	v	g
03	09		A
04	09	xiij	b
05	09	ij	c
06	09		d
07	09	x	e
08	09		f	Nativitas b. Marie Virginis. - S.Adriani m.	Gregorian, Gelasian: Adrianus
09	09	xviij	g	Gorgonii m.	Gelasian
10	09	vij	A
11	09		b	Prothi et Iacincti mrm.	Gregorian
12	09	xv	c
13	09	iiij	d
14	09		e	Cornelii et Cypriani mrm., - Exaltatio s. Crucis	Gregorian
15	09	xij	f	Nicomedis m.	Gregorian [Natale]
16	09	i	g	Euphemie v. , - Lucie et Geminiani mrm.	Gregorian
17	09		A
18	09	ix	b
19	09		c
20	09	xvij	d	Vigilie s. Mathei	Gelasian
21	09	vj	e	Mathei apost. et ev.	Gelasian
22	09		f
23	09	xiiij	g
24	09	iij	A
25	09		b
26	09	xj	c
27	09	xix	d	Cosme et Damiani mrm.	Gregorian
28	09		e
29	09	viij	f	Dedicatio basilicæ S.Michaelis archangeli.	Gregorian
30	09		g	Hieronymi pb.	Gelasian
		KL		OCTOBER
01	10	xvj	A
02	10	v	b
03	10	xiij	c
04	10	ij	d
05	10		e
06	10	x	f
07	10		g	Marcelli et Apulei mrm.	Gelasian [Gregorian: Marci pape]
08	10	xviij	A
09	10	vij	b
10	10		c
11	10	xv	d
12	10	iiij	e
13	10		f
14	10	xij	g	Calixti I pp.m.	Gregorian
15	10	i	A
16	10		b
17	10	ix	c
18	10		d	Luce evang.	Gelasian
19	10	xvij	e
20	10	vj	f
21	10		g
22	10	xiiij	A
23	10	iij	b
24	10		c
25	10	xj	d
26	10	xix	e
27	10		f	Vigilie ss.Simonis et Iude	Gelasian
28	10	viij	g	Simonis et Iude	Gelasian
29	10		A
30	10	xvj	b
31	10	v	c
		KL		NOVEMBER
01	11		d	Cesarii m.	Gregorian
02	11	xiij	e
03	11	ij	f
04	11		g
05	11	x	A
06	11		b
07	11	xviij	c
08	11	vij	d	Quatuor coronatorum	Gregorian
09	11		e	Theodori m.	Gregorian
10	11	xv	f
11	11	iiij	g	Menne m. - Martini ep.cf.	Gregorian
12	11		A
13	11	xij	b
14	11	i	c
15	11		d
16	11	ix	e
17	11		f
18	11	xvij	g
19	11	vj	A
20	11		b
21	11	xiiij	c	Vigilie s. Cecilie	Gelasian
22	11	iij	d	Cecilie v.m.	Gregorian
23	11		e	Clementis et Felicitatis mrm.	Gregorian
24	11	xj	f	Chrysogoni m.	Gregorian
25	11	xix	g		[Katharine v.]
26	11		A
27	11	viij	b
28	11		c
29	11	xvj	d	Saturnini m. - Vigilie Andree. - Chrysanti, Mauri et Darie mrm.	Gregorian, Gelasian: Chrysanti, Mauri et Darie.
30	11	v	e	Andree apostoli	Gregorian
		KL		DECEMBER
01	12	xiij	f
02	12	ij	g
03	12		A
04	12	x	b
05	12		c
06	12	xviij	d
07	12	vij	e	Oct. s. Andreae	Gelasian
08	12		f
09	12	xv	g
10	12	iiij	A
11	12		b	Damasi I pp.	Gelasian
12	12	xij	c
13	12	i	d	Lucie v.m.	Gregorian
14	12		e
15	12	ix	f
16	12		g
17	12	xvij	A
18	12	vj	b
19	12		c
20	12	xiiij	d
21	12	iij	e	Thome apost.	Gelasian
22	12		f
23	12	xj	g
24	12	xix	A	Vigilie	Gregorian
25	12		b	Nativitas D.n. Iesu Christi	Gregorian
26	12	viij	c	Stephani prothomartiris	Gregorian
27	12		d	Iohannis apost. ev.	Gregorian
28	12	xvj	e	Innocentium mrm.	Gregorian
29	12	v	f
30	12		g
31	12	xiij	A	Silvestri I pp. cf.	Gregorian

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©1985 Erik Drigsdahl & CHD Center for Håndskriftstudier i Danmark
Last update 26/07/2001