<Ul> <Li> The Calendar: Folios 1--13 </Li> </Ul> <Li> The Calendar: Folios 1--13 </Li> <Dl> <Dd> <Dl> <Dd> A generalized calendar (not specific to any year) of church feasts and saints' days, often illuminated with representations of the Labours of the Months, is a usual part of a book of hours, but the illustrations of the months in the Très Riches Heures are exceptional and innovative in their size, and the best known element of the decoration of the manuscript . Up to this point any scenes of the labours had been smaller images on the same page as the calendar text, though later 15th - century calendars often adopted the Limbourg's innovation of a full - page miniature, though most had smaller pages than here . They were also unprecedented in mostly showing one of the duke's castles in the background . They are filled with details of the delights and labors of the months, from the Duke's court to his peasants, a counterpart to the prayers of the hours . Each illustration is surmounted with its appropriate hemisphere showing a solar chariot, the signs and degrees of the zodiac, and numbering the days of the month and the martyrological letters for the ecclesiastic lunar calendar . Each month of the calendar is allotted an opening of two pages, on the righthand page the calendar listing notable feast days and on the left the miniature . January is the largest miniature in the calendar and includes the Duke of Berry at a New Year's Day feast (Longnon, Cazelles and Meiss 1969). </Dd> </Dl> </Dd> </Dl> <Dd> <Dl> <Dd> A generalized calendar (not specific to any year) of church feasts and saints' days, often illuminated with representations of the Labours of the Months, is a usual part of a book of hours, but the illustrations of the months in the Très Riches Heures are exceptional and innovative in their size, and the best known element of the decoration of the manuscript . Up to this point any scenes of the labours had been smaller images on the same page as the calendar text, though later 15th - century calendars often adopted the Limbourg's innovation of a full - page miniature, though most had smaller pages than here . They were also unprecedented in mostly showing one of the duke's castles in the background . They are filled with details of the delights and labors of the months, from the Duke's court to his peasants, a counterpart to the prayers of the hours . Each illustration is surmounted with its appropriate hemisphere showing a solar chariot, the signs and degrees of the zodiac, and numbering the days of the month and the martyrological letters for the ecclesiastic lunar calendar . Each month of the calendar is allotted an opening of two pages, on the righthand page the calendar listing notable feast days and on the left the miniature . January is the largest miniature in the calendar and includes the Duke of Berry at a New Year's Day feast (Longnon, Cazelles and Meiss 1969). </Dd> </Dl> </Dd>

In their upper portions the pages of tres riches heures are decorated with
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