Karlsruhe Palace was designed by Jakob Friedrich von Batzendorf for Margrave Charles III William of Baden-Durlach, after a dispute with the citizens of Durlach. Balthasar Neumann and Friedrich von Kesslau altered it until 1770, and Wilhelm Jeremias Müller shortened the tower and added a cupola in 1785. It was built in 1715 and rebuilt in stone in 1746. The page has no infobox, so no dates conflict.
The article names no style. It says the palace was originally partly wood before the stone rebuilding of 1746. It gives no dimensions.
Grand Duke Leopold was expelled for some time in 1849, and the last monarch, Frederick II, moved out in 1918. Allied bombing reduced much of the palace to rubble in World War II, and it was quickly rebuilt after the war. It is the main museum of the Badisches Landesmuseum Karlsruhe. The article gives no hours.

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