Loc Grim Palace is the summer residence of Imperator of Nilfgaard. He took the false Ciri there. It is located on the Alba in the south of Nilfgaard. It is also the name of the lake where the residence is located.
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That morning there was an unusual commotion in Loc Grim Palace, the imperator's summer residence.
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— pg(s). 241, Time of Contempt (UK edition)