About: http://webisa.webdatacommons.org/367684974

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The drawing of Isabella in the Louvre, on which the painting is clearly based, was done some time between late 1499 and March of 1500, when Leonardo was a guest at her court in Mantua.
http://www.w3.org/ns/prov#wasQuotedFrom	artnews.com