Note 329 — Book IX.
John Beames translation
“In the year 1152, the Emperor Frederic Barbarossa made a Statute, that in every oath of fealty taken to any of his subjects, there should be a reserve of the faith due to him and his successors; which immediately was adopted by several other nations, where the feudal Law was in use, with regard to their sovereigns, and, the omission of that reserve was punished in England by a judicial determination under Edward the first.” (3 Litt. Hen. 3. p. 111.) This reserve was also required by the Book of Feuds L. 2. t. 55. Regiam Maj. L. 2. and Grand Cust. Norm.