caption: The image shows a painting of a group of men on horseback in front of a castle, with a fort in the background. The painting is believed to be from the 14th century, depicting the siege of Constantinople. The men are dressed in medieval clothing, and the horses are adorned with saddles and bridles. The fort is tall and imposing, with several towers and turrets. The sky is a deep blue, with stars twinkling in the night sky.