It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
Malhoa February a. en Portarit of Prince Lus Filipe of Portugal by Jos Malhoa Museum Jos Malhos Caldas da Rainha Portugal own Alvesgaspar other versions PDold Uploaded with Photographs by Alvesgaspar Jos Malhoa Museu de Jos Malhoa Luis Filipe of Portugal paintings Quality images by Alvesgaspar
Page 2017 Free-images.com. All images are Public Domain