Diptych of Saints Achatius, Barbara, Apollonia, and Sebald Unknown painters

The picture has something of this: saint, aura, god, Mary, church, holy, virgin, book, chapel, Apostle, Madonna, prayer, spirituality, Renaissance, fresco, woman.
Perhaps it’s a painting of a man and a woman standing next to each other in front of a tall building with a clock tower in the middle of it.