The origin of Archbishop Thomson was obscure. His great-uncle "may reasonably be supposed" to have been "an ornament to the middle classes". His aunt married a gentleman who was present at the murder of Gustavus III. of Sweden; and his father met his death at the age of eighty-seven by treading on a cat in the early hours of the morning. The physical vigour which this anecdote implies was combined in the Archbishop with powers of intellect which promised success in whatever profession he adopted.