Thomas Lister and Family at Gisburne Park Arthur William Devis (1712-1787)

The picture has something of this: cavalry, people, wear, veil, group, seated, man, recreation, woman, mammal, wedding, child, many, horse, girl, group together, competition, uniform, two.
Perhaps it’s a painting of a group of people standing in a field with a horse and a dog in the foreground, and a building in the background.