_Traditions from Remote Periods through few Links_ (Vol. iii., pp. 206.
237.):--
"My greatest boast in this line is, that I have conversed with Sir
Isaac Herd, the celebrated herald, and he had conversed with a person
who was present at the execution of Charles I."--Lord Campbell's
_Lives of the Chief Justices_, vol. ii. p. 304. note.