Gospels of Henry the Lion

As for its date, the church in Brunswick was built in 1173, and the altar of the Virgin Mary was dedicated in 1188.

The creation of the gospel book was formerly placed by most authorities at about 1175 ("early dating") but today the balance of opinion puts it at about 1188 ("late dating") The manuscript, containing 266 pages with the text of the four gospels, 50 of them full page illustrations, was sold by auction on 6 December 1983 at Sotheby's in London for £8,140,000.

[2] The purchase price was raised, in the context of a German national initiative for the preservation of national treasures, by the German government, the Bundesländer of Lower Saxony and Bavaria, the Stiftung Preußischer Kulturbesitz and private donors (largely from Brunswick).

It was the most expensive book in the world until 1994, when Bill Gates bought the Codex Leicester, a manuscript by Leonardo da Vinci.

The gospel book, preserved completely intact, with 50 full page miniatures, is kept in the Herzog August Bibliothek in Wolfenbüttel, and for security reasons is displayed only once every two years.