A remarkable leaf from a Book of Hours written in Dutch. Most medieval books were written in Latin, the language of the Church. Geert Groote, the father of the Devotio Moderna, the Broederschap des Gemenen Levens, as his movement was called in Dutch, was a great advocate of the vernacular in religious books. This leaf is part of "die ewige wijsheit ghetide", the Hour of eternal wisdom. The decorations are remarkable as well and painted in a very unusual style with acanthus leaves, violets and other flowers. The initial "M" has a striking design illuminated with burnished gold leaf.