C.J. Lagercrantz, Assessor, and his Family Gustaf Wilhelm Finnberg (1784-1833)

The picture has something of this: people, group, man, portrait, woman, son, child, three, music, wear, musician, performance, two, four, theater, lid.
Perhaps it’s a painting of a family with two children and a man in a black suit and a woman in a white dress and a child in a red dress.