Original sentence: His ancestor fled Ireland following the late 17th.Miles Dempsey was a direct descendant of the O'Dempseys of Clanmalier, an aristocratic Gaelic nobility who can trace their line back to the High King of Ireland in the 2nd century A.century confiscations
Edited sentence: A more recent ancestor of Miles Dempsey fled Ireland following late-seventeenth-century confiscations.Miles Dempsey was a direct descendant of the O'Dempseys of Clanmalier, an aristocratic Gaelic family with a history traceable to a High King of Ireland in the second century A