Complex sentence: John Churchill, who became the Duke of Marlborough is thought to have been born about 1 mile north of the village at Trill, his parents having lived at Ashe House also to the north of the village.
Split into simpler sentences: John Churchill, who became the Duke of Marlborough is thought to have been born about 1 mile north of the village at Trill. His parents having lived at Ashe House also to the north of the Village.