but moved in 1898 when the Palace became the residence of Crown Prince Christian (X) and Princess Alexandrine. After the death of Christian X the Palace was placed at the disposal of Prince Knud, the Heir Presumptive. The palace was the home of Crown Prince Frederik until his marriage in 2004. From 2018 to 2019, Queen Margrethe II's eldest grandchild Prince Nikolai lived in an apartment in the palace. Today, there is little left of the remaining rococo interior; much of the interior reflects the changing taste and style of its residents over the years. In the 1980s the palace was restored as residence for the Crown Prince, storage facilities for the Queen's Reference Library and a museum for the Royal House of Glücksborg. The museum features private royal apartments from 1863 to 1947 including original fittings and furnishings. Tours are sometimes held of the rooms on the piano nobile. Frederick VIII's Palace Frederik VIII's Palace, also known as Brockdorff's Palace, is the northeastern palace. It has been the home of Crown Prince Frederik and the Crown Princess Mary since their marriage. It was originally built for Count Joachim Brockdorff in the 1750s. Brockdorff died in 1763, and Lord High Steward Adam Gottlob Moltke acquired the palace. Moltke sold it two years later to king Frederick V. From 1767 it housed the Danish Military Academy, also known as the Army Cadet Academy (Landkadetakademi). In 1788 naval cadets replaced the army cadets until the academy moved to another location in 1827. The following year the palace was prepared to house king Christian VIII's son, Frederick VII, who ascended the throne in 1848, and his bride, Princess Vilhelmine. Architect Jørgen Hansen Koch successfully and thoroughly refurbished the palace in French Empire style in 1827–28. After the marriage was dissolved in 1837, various members of the royal family lived in the palace. In 1869, it became the home of Frederik VIII. In 1934, it became the home of King Frederik IX and Queen Ingrid. The latter lived there until her death in 2000. From 2006 to 2010 the palace underwent major renovation to accommodate the Crown Prince couple. Christian IX's Palace Christian IX's Palace is the southeastern palace, and is also known as Schack's Palace. It has been the home of Queen Margrethe II since 1967. Building work was commenced in 1750 by Eigtved, and was supervised first by architect Christian Josef Zuber