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:
Dejeunercanotiers. File PierreAuguste Renoir Luncheon of the Boating Party Google Art Project Artwork Creator PierreAuguste Renoir Phillips Collection object history exhibition history credit line accession number ibiblio org dejeunercanotiers ibiblio org PDoldauto Luncheon of the Boating Party
Page 2017 Free-images.com. All images are Public Domain