Complex sentence: Todd was married to Helen Ann Rollo Buddo, cousin and adopted daughter of David Buddo, a rich Canterbury run-holder and one of Canterbury's best-known farmer-politicians of the Liberal era.
Split into simpler sentences: Todd was married to Helen Ann Rollo Buddo, cousin and adopted daughter of David Buddo, a rich Canterbury run-holder. Buddo was one of Canterbury's best-known farmer-politicians of the Liberal era.