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:
Petrus Christus Portrait of Young Woman Google Art Project. Assessments Portrait of Young Girl LargeImage Artwork Creator Petrus Christus Oil oak wood cm Institution Gemldegalerie Berlin object history credit line accession number UAGsuoFcmmRiTg PDold Google Art Project works in Gemldegalerie Staatliche Museen zu Berlin
Page 2023 Free-images.com. All images are Public Domain