Complex sentence: From him, the manor descended to Washington Shirley, 5th Earl Ferrers, during which time, in 1761, the Astwell fields were enclosed, and two years later, Shirley sold Astwell to Richard Grenville-Temple, 2nd Earl Temple.
Split into simpler sentences: From him, the manor descended to Washington Shirley, 5th Earl Ferrers. In 1761, the Astwell fields were enclosed, and two years later, Shirley sold Astwell to Richard Grenville-Temple, 2nd Earl Temple.