[1] The psalter, or book of Psalms, contains 252 beautifully illustrated pages and is named after its most recent owner, the Earl of Macclesfield.
Having rested unrecognised on the shelves of Shirburn Castle for several centuries, finally revealed when the library was catalogued for sale, the Macclesfield Psalter was put up for auction at Sotheby's in 2004.
In response, the Fitzwilliam Museum, assisted by an £860,000 contribution from the UK Government's National Heritage Memorial Fund raised the £1.7 million necessary to keep the Psalter in the country.
There are some full-page miniatures at the start, and throughout the book each new verse begins with a small gilded initial against an ornate background of rose and pink.
These images include grotesques with faces on their bottoms, three-headed monsters with hairy noses, a dog in a bishop's costume, an ape doctor giving a false diagnosis to a bear patient, rabbits jousting and riding hounds and a giant skate terrorising a man.