Complex sentence: It was subsequently rebuilt in 1764 in its current shape and the gardens were remodeled in the French style of Rococo- "Lustgartens" but after the death of Queen Elisabeth Christine in 1797 was seldom used and served mainly as a storage facility for furniture and paintings.
Split into simpler sentences: It was subsequently rebuilt in 1764 in its current shape and the gardens were remodeled in the French Rococo style- "Lustgartens". After the death of Queen Elisabeth Christine in 1797 the chateau was seldom used and served mainly as a storage facility for furniture and paintings.