Complex sentence: Prince Jai worries about his mother's persistent illness, and is confused by her sudden interest in golden flowers, in response to which, the Empress reveals that the Emperor has been poisoning her tea, and that she is planning on overthrowing him.
Split into simpler sentences: Prince Jai worries about his mother's persistent illness, and is confused by her sudden interest in golden flowers. In response, the Empress reveals that the Emperor has been poisoning her tea and that she is planning on overthrowing him.