“In 1905 the Marquis bought some ruined houses near the Transito Synagoge, trying to recover a characteristically 16th century Spanish environment, and recreating with it what might have been El Greco's house in Toledo. In fact he bought the so-called houses of the Duchess of Arjona, which were close to the properties of the Marquis of Villena, where El Greco actually lived.“
https://www.culturaydeporte.gob.es/mgreco/en/museo/casa-museo.html