Vlieger, Simon de – De thuiskomst van de valkenier, 1637 Rijksmuseum: part 3

The picture has something of this: people, group, mammal, cave, architecture, indoors, two, man, cavalry, ancient, wear, bedrock, grave.
Perhaps it’s a painting of a white horse standing in front of a doorway with a dog laying on the ground next to it and a man standing.