Complex sentence: She married John Bass in Braintree on February 3,1657/8, and had seven children, one of whom, Hannah, was the grandmother of John Adams, second President of the United States.
Split into simpler sentences: She married John Bass in Braintree on February 3,1657/8, and had seven children. One of the children, Hannah, was the grandmother of John Adams, second President of the United States.