Schwanstein – in 1832, abandoning his father's wish that he should move into the old castle (Hohes Schloss) in the nearby town of Füssen. In February 1833, the reconstruction of the castle began, continuing until 1837, with additions up to 1855. The architect in charge, Domenico Quaglio, was responsible for the neogothic style of the exterior design. He died in 1837 and the task was continued by Joseph Daniel Ohlmüller (died 1839) and Georg Friedrich Ziebland. More than 90 wall paintings (by such artists as Lorenzo Quaglio and Michael Neher) represent the history of Schwangau, as well as medieval German romances such as Parzival and the story of Lohengrin, the Knight of the Swan, on which Richard Wagner later based his operas Lohengrin of 1848 and Parsifal of 1882, sponsored by Ludwig II who had grown up with these stories at Hohenschwangau. Hohenschwangau was the official summer and hunting residence of Maximilian, his wife Marie of Prussia, and their two sons Ludwig (the later King Ludwig II of Bavaria) and Otto (the later King Otto I of Bavaria). The young princes spent many years of their adolescence here. Queen Marie who loved to hike in the mountains created an alpine garden with plants gathered from all over the alps. The King and the Queen lived in the main building, and the boys in the annex. The Queen's cousin, Frederick William IV of Prussia, had Stolzenfels Castle on the Rhine rebuilt at the same time in the Gothic Revival style. King Maximilian died in 1864 and his son Ludwig succeeded to the throne, moving into his father's room in the castle. As Ludwig never married, his mother Marie was able to continue living on her floor during the summer months. King Ludwig enjoyed living in Hohenschwangau, however mostly in the absence of his disliked mother, especially after 1869 when the building of his own castle, Neuschwanstein, began on the site of the old Schwangau fortress, high above his parents' castle. After Ludwig's death in 1886, Queen Marie was the castle's only resident until she in turn died in 1889. Her brother-in-law, Prince Regent Luitpold of Bavaria, lived on the 3rd floor of the main building. He was responsible for the electrification in 1905 and the installation of an electric elevator. Luitpold died in 1912 and the palace was opened as a museum during the following year. During World War I and