During the C13th and C14th Frodsham Castle was used as a gaol, but the term castle is perhaps inappropriate for a building which had become by the C14th, a fortified manor house.
In spite of repairs carried out on the great hall in the early C14th, employing three carpenters, a mason and a plumber, the building collapsed by the middle of the century. The hall was rebuilt, with particular attention to roofing and lead guttering, while the tower "needed repair both in timber and roofing."
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