In "Peerage and Pedigree" 1970 by Horace Round, London: The Tabard Press, LTD., p196-199(a reprint of the J. Nisbit & Co., London 1910 original publication), problems with the Beckwith-Mallebisse connection are clearly stated. To see a full test article, check for this book on inter-library loan. The main points are:
- If Sir Hercules Malebisse had taken his wife's name to inherit her father's land, he would have takenm the name BRUCE, not BECKWITH. The LAST name is the name taken in such cases.
- the date of summons (18 Jan. 13 Edw. III) would represent the year 1340 (1339 by the then reckoning)
- the earl-marshall who issued the summons and who attested to the result of the trial in October following thetrial actually died in 1338- two years before the summons was supposedly issued and a decree gicen.
- also discussed is the unlikely names of Beckwith and Hercules as gicen names at that time in "England".
- also discussed is the process by which the name change and land claim would have been made, which was different in the early 1300s than in the 1400-1500when the Beckwiths appear to have claimed right to the Malebisse coat of arms.
-finally, it is pointed out that title to a coat of arms is only granted through a PROVEN descent in the pure male line from the a progenitor- therefore the Beckwith claim to the Malebisse coat of arms is fraudulent.
These are the facts as presented by John Horace Round in 1910.