The Frederiksborg Museum was founded by a royal decree on 5 April 1878 and was opened to the public on 1 February 1882. The original collection was based on the paintings which had been saved from the castle fire but, with the help of the Jacobsen fund, it was soon extended to include other cultural artefacts including paintings and furniture. Over the next thirty years, the collection was considerably extended with paintings providing a national record of the most important figures in Danish history from the Middle Ages to the present day. Today the portrait collection is the largest in Denmark. In addition to its 70 rooms in the three storeys of the King's Wing and the Princess's Wing, the Chapel, the Rose Room and the Audience Room are included in the museum. The museum also hosts special exhibitions. Since 2010 it has also hosted a censored international portrait exhibition.
Valdemar Room The first and second storeys of the King's Wing present the history of Denmark from the 12th to the 17th century. The Valdemar Room contains a number of history paintings which were specially commissioned for the museum, including
Carl Bloch's ''
Christian II's Imprisonment in Sønderborg'' (1871),
Otto Bache's
De sammensvorene rider fra Finderup (1882) showing the conspirators riding away from Finderup near
Viborg after the murder of
Erik Klipping, and
Laurits Tuxens 1894 work depicting
Valdemar the Great and
Absalon destroying
Svantevit's temple on the island of
Rügen. The Valdemar Room also contains a copy of the oldest
Danish flag from 1427. The original used to hang in
Lübeck Cathedral in Germany, where it was destroyed by bombing in 1942. The portrait collection also contains a number of truly historic works including
Karel van Mander's paintings of
Leonora Christina and
Christian IV, and a number of works by
Jacob Binck. The works in the east wing are mainly from the 18th and 19th centuries and include
Constantin Hansen's historic painting of the
Fathers of the Danish Constitution.
Chapel The chapel, consecrated in 1617, is also part of the museum. It is the best-preserved part of the Renaissance complex, having largely escaped damage in the 1859 fire. The chapel extends along the entire length of the west wing with a long nave and a two-storey gallery. The richly decorated six-vaulted stucco ceiling is borne by pillars rising from the galleries. The pillars bear
grisaille frescos of Biblical figures, painted in the 1690s. The galleries were decorated during the reign of
Frederick III (1648–1670) as can be seen from his arms. The Chapel's most significant artifact is the
Compenius organ, built by Esajas Compenius in 1610. It was installed by Compenius himself shortly before his death in Hillerød in 1617. The oldest organ in Denmark, it has 1,001 wooden pipes. Its original manually-driven bellows has been preserved. The instrument is richly decorated with ebony, ivory and silver. The altarpiece and pulpit from the early 17th century are the work of the silversmith Jacob Mores from Hamburg. In the king's prayer chamber adjoining the Chapel, there is a small silver altar crafted by the goldsmith Matthäus Wallbaum from
Augsburg in 1600.
Great Hall The Great Hall (
Riddersalen) is situated above the Chapel and also extends over the length of the west wing. It was destroyed by fire in 1859, but was almost fully restored thanks to architectural paintings made by Heinrich Hansen and F.C. Lund. The restoration work, completed in 1880, was carried out by
Ferdinand Meldahl who made use of preserved segments of the ornate gilded ceiling. The large
chandelier in the centre of the room is the work of Meldahl's pupil, Carl Brummer. The original tapestries depicting important events in the life of Christian IV were woven in
Karel van Mander's workshop in
Delft. The copies decorating the walls of the hall today were created from Mander's sketches.
The Rose The room on the ground floor in the King's Wing known as the Rose was originally a dining room for the king and his courtiers. It was also destroyed by the fire in 1859, but was reconstructed from old paintings. The two series of six vaults rest on free-standing pillars. It is thought Mehldahl managed to reuse parts of the window decorations including the monograms of Christian IV and Queen Catherine.
Audience Chamber Extending into the middle islet, the Audience Chamber also escaped damage from the fire in 1859. It was decorated by
Christian V's master builder
Lambert van Haven in the 1680s, combining the Renaissance style with
Baroque. He had himself brought the paintings in adjoining Privy Passage (
Conseilgangen) back from Italy. His work was completed in 1688, making the Audience Chamber the oldest preserved Baroque room in Denmark. The sumptuous ceiling in the Privy Passage with flowering vines, creepers and rosettes is the work of the stucco artists Jan Wilckens van Verelt and Christian Nerger. The Audience Chamber itself was completed in 1689. The chandelier with a carved deer was crafted around 1625 by Hans Ocksen. The chair in the north-east corner allowed the king to be lifted up from the building's entrance. The central dome, designed by van Haven, bears the motto of Christian V,
Pietate et Justitia (Piety and Justice) and is decorated with allegorical paintings of a Christian queen, a negro, a Turk, and an American Indian representing Europe, Africa, Asia and America. The paintings on the walls by the Christian V's court painter
Jacob d'Agar depict the king's ancestors. They are surmounted by scenes from the king's glorious
Scanian War (1675–1697) painted by Claus Møinchen and Christian Morholt, despite the fact that in the end, Denmark was defeated. ==Castle parks==