Complex sentence: Maria was then about 14 years old and is dressed in the height of late fifteenth-century fashion, wearing an elaborate jewel studded necklace and long black hennin with a transparent veil.
Split into simpler sentences: Maria was then about 14 years old and is dressed in the height of late fifteenth-century fashion. She wears an elaborate jewel studded necklace and long black hennin with a transparent veil.