• Computational table and text., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Diagram of of the calendar inscribed with names of the months and a title reading 'orologium', with a marginal image of a man, representing perhaps a personification of the wind., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Coloured initials in red and green on a text page., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Coloured initials in red and green on a text page, with marginal drasings of an animal's head, and foliage., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Initial 'T'(empora) of an emperor enthroned, representing perhaps a personification of Time, at the begining of book 2 of Bede's De natura rerum et ratione temporum., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Table of capitula with red and green lettering., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Coloured initial 'O'(ctava) on a text page., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Decorated initial 'D'., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawing of a snake encircling two bears representing the constellation of Draco and the star of Arcurus meaning the guardian of the bear in Greek., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawings of Hercules killing Nemean Lion, a lyre, a swan, and a man representing the constellations of Engonasis (or Hercules), Lyra, Cignus, and Cephus., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawings of Perseus killing a man, Erichthonius the charioteer with two small goats, and a man holding a snake, representing the constellations of Perseus, Auriga, and Ophiuchus (or Serpentarius)., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawings of a chimera, a winged horse, and a man in a triangular enclosure, representing the constellations of Delfinus, Equus, and Deltoton., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawings of two men, a crab, and a lion, representing the constellations Gemini, Cancer, and Leo., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawings of a centaur with a bow and arrow, a sea-goat, and a man carrying a jug of water representing the constellations Sagittarius, Capricorn, and Aquarius., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawings of a man with water flowing from his mouth, a leaping rabbit, a man with a sword, and a dog, representing the constellations Canopus, Lepus, Orion, and Canis., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Drawings of a pantera and a building, representing the contellations Pantera and Ara., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Decorated initial 'I'(n nomine)., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Circular diagram., Miscellany works on Computus and astrology

10th earl of Warwick (b. c. 1272, d. 1315), written at Harrington, 9 March; a letter to the 'Official deuerwike' [York], in favour of his chaplain Gilbert de Grim[esby] recommending him for the 'chancerye a Bercleye' resigned by William de

• Decorated initial 'H'(eri) with foliate decoration at the beginning of the sermon of Fulgentius for the feast of Stephen, at the beginning fo the Sanctorale., Breviary, or Nocturnal, Cistercian Use (see Notes)

diocese of York: the calendar includes distinctive Cistercian and northern English feasts highly graded and in red, including: 'Commemoracio episcoporum et abbatum ordinis' (11 January), Robert of Molesme (29 April), Peter of Tarentaise (8 May), William, archbishop of York (8

• Detail of an illuminated initial., Breviary, or Nocturnal, Cistercian Use (see Notes)

diocese of York: the calendar includes distinctive Cistercian and northern English feasts highly graded and in red, including: 'Commemoracio episcoporum et abbatum ordinis' (11 January), Robert of Molesme (29 April), Peter of Tarentaise (8 May), William, archbishop of York (8