Complex sentence: After several months, bored and lonely, the young queen decided to join her husband-nothing could have pleased the king more, for these antics reminded him of his first wife Eleanor, who had had two of her sixteen children abroad.
Split into simpler sentences: After several months, bored and lonely, the young queen decided to join her husband. Nothing could have pleased the king more, for Marguerite's actions reminded him of his first wife Eleanor, who had had two of her sixteen children abroad.