text: The Gayer-Anderson Museum beside the Ibn Tulun mosque was built as a private residence in 1540 and amalgamated with a neighboring house called the house of the Cretan Woman ( Bayt al-Kritliya ) dating from 1631 .
  
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  In 1540 , beside the Ibn Tulun mosque , the Gayer-Anderson Museum was built as a private residence , and amalgamated with a neighboring house called the house of the Cretan Woman .