Some information about it Citadel of Qaitbay from some references.
The Citadel of Qaitbay (or the Fort of Qaitbay) is a 15th century defensive
building located on the Mediterranean sea coast of Egypt, built upon/from
the ruins of the Lighthouse of Alexandria, in Alexandria, Egypt. It was one
of the buildings constructed during the reign of the sultan Qa'it Bay.
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