Complex sentence: He was the father of Austin Lane Poole (1889--1963), also a historian and Ford's Lecturer, and the brother of Stanley Lane-Poole, nephew of Reginald Stuart Poole, great-nephew of Edward William Lane.
Split into simpler sentences: He was the father of Austin Lane Poole (1889--1963), also a historian and Ford's Lecturer. Brother of Stanley Lane-Poole, nephew of Reginald Stuart Poole, great-nephew of Edward William Lane.