Thomas Picton compares O'Brien to William North stating, "[a]ny person acquainted with the two parties cannot fail to draw a disparaging distinction between the scholastic attainments of the late Mr. North and the Hibernian pretensions of the ever-present and somewhat pertinacious Mr. Fitz-James O'Brien, whose sole merit in Saxon literature must be derived from his apochryphal descent from the Kings of old Erin."