The Just Judges (1939 copy by Jan van Der Veken) Jan van Eyck (1385/90-1441)

The picture has something of this: people, veil, Renaissance, cavalry, group, woman, man, saint, baby, son, wear, child.
Perhaps it’s a painting of a man riding on the back of a white horse next to a group of men in medieval garb and with a castle in the background.