Elegant Figures Conversing On A Terrace, Sintra, Portugal Ludwig Heinrich Theodor Gurlitt (1812-1897)

The picture has something of this: mountain, snow, water, outdoors, people, tree, landscape, recreation, lake, reflection, daylight, group, sky, scenic, two, river, valley, nature.
Perhaps it’s a painting of a group of people walking on a path in a mountainous area with a lake in the foreground and a mountain range in the background.