⚠The lower portion of this page contains a bluish-green stain, likely from historical liquid damage or a pigment wash, though the text remains largely legible beneath it.

[Calendar: January]

January has 31 days; the lunar month has 30.

Golden Number	Dominical Letter	Day	Feast / Event
	A	Kalends	JANUARY Circumcision of the Lord The feast celebrating the circumcision of Jesus, eight days after his birth.
III	B	4th	Octave of Saint Stephen An "Octave" is the eighth day after a major feast, often concluding a week of celebration.
	C	3rd	Octave of Saint John. Saint Genevieve, virgin.
XI	D	2nd	Octave of the Holy Innocents.
XIX	E	Nones
VIII	F	8th	Epiphany of the Lord Celebrating the visit of the Magi.
	G	7th
XVI	A	6th	Lucian, Maximian, and Julian, martyrs.
V	B	5th
	C	4th
XIII	D	3rd
II	E	2nd
	F	Ides
X	G	19th	IDES Octave of Epiphany and Saint Hilary, bishop. The "Ides" was a marker in the Roman calendar, usually falling on the 13th or 15th of the month.
	A	18th	Felix, priest.
XVIII	B	17th	Saint Maurus, abbot.
VII	C	16th	Marcellus, pope.
	D	15th	Sulpicius and Anthony, bishops.
XV	E	14th	Prisca, virgin.
IV	F	13th	Launomarus, abbot.
	G	12th	Fabian and Sebastian. Saint Mary and Martha with companions.
XII	A	11th	Saint Agnes, virgin and martyr.
I	B	10th	Saint Vincent, martyr.
	C	9th	Emerentiana, virgin and martyr.
IX	D	8th
	E	7th	Conversion of Saint Paul. Saint Praxedes, virgin. D The "D" likely signifies a "Dies Egyptiacus" or Egyptian Day, considered unlucky for medical procedures or major undertakings.
XVII	F	6th
VI	G	5th	Julian, bishop.
	A	4th	Agnes for the second time. original: "Agnetis secundo." A second feast for St. Agnes, marking the octave of her primary feast.
XIV	B	3rd
III	C	2nd

The night has 18 hours. The day, however, has 9.

The Labors of the Months: January The illustrations accompanying this calendar page depict the classic "Labors of the Months."

In the upper section, we see the two-faced Roman god Janus, the namesake of January. He sits at a table, looking simultaneously toward the past year and the new one, raising a drinking horn in a toast.

Below this, a domestic scene captures the reality of midwinter: a man sits huddled by a fire, warming his hands and feet. He holds a poker or blowpipe to tend the embers, a poignant reminder of the seasonal rhythm of medieval life—finding warmth and rest during the shortest days of the year.