The original Neuburg castle was built in the early Middle Ages by the Agilolfings noble family. This was acquired by the Wittelsbach dukes in 1247. When Count Palatine Otto Henry began his rule in Palatinate-Neuburg in 1522, he found a medieval fortified castle in his residence city of Neuburg, which, unlike similar than other royal residences was still not adjusted for the demands of a modern royal court. So from 1527 he ordered to re-design the castle into a Renaissance palace and to expand the artistic quality and condition to one of the most important palaces of the first half of the 16th Century in Germany. From 1537 an additional west wing was added which also includes the chapel. With his conversion to the Lutheran doctrine in 1541 the Palatine Chapel was decorated with excellent facilities, the antique-style Italian picture program painted in 1543 has been obtained. The chapel was decorated with famous frescoes by the Salzburg church painter Hans Bocksberger the Elder. The chapel is the oldest Protestant church in Bavaria. Because of the financial difficulties and bankruptcy of Otto Henry in 1544, the construction of the west wing took a long time.
Wolfgang, Count Palatine of Zweibrücken, who succeeded his cousin Otto Henry in the Duchy of Palatinate-Neuburg, ordered in 1562 to decorate the west wing facing the courtyard with elaborate Sgraffito decorations. The Knights' Hall (the lower panel room in north building) was provided in 1575 by Hans Pihel with a coffered ceiling and wall panels from a rotating timber, both of which are original. The impressive east wing was rebuilt in 1665 by Philip William, Elector Palatine in the Baroque style and complemented with two round towers.
Today the castle houses a gallery of baroque paintings, the museum is under supervision of the Bavarian State Picture Collection.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.