The Istanbul Carpet museum is housed (since 2013) in the İmaret (Soup Kitchen) added to the Ayasofya in 1742-43 during the reign of Sultan Mahmud I. The collection includes pieces dating from the 15th to 19th centuries that once used to grace the contents of the floors of the Divriği Ulu Cami, the Süleymaniye and Ahmediye (Blue) Mosques in Istanbul and the Eski Cami in Edirne. The museum contains a large board illustrating the motifs to be found on the carpets, and refers to the representations of oriental carpets on paintings of the Renaissance painters Holbein and Lotto.