Adolf (1526-1586), Duke of Holstein, Kristina (1543-1604), Princess of Hessen-Kassel Unknown painters

The picture has something of this: people, man, veil, sword, wear, pants, woman, weapon, portrait, lid, monarch, royalty, armor, son, Renaissance, music.
Perhaps it’s a painting of a man and a woman standing next to each other in a room with a red curtain and a red drape on the wall.