Note 342 — Chapter VII · THE CASTLES OF THE NORMANS IN ENGLAND
Reading edition
Mr W. H. Stevenson, in his edition of Asser, pp. 173, 174, shows that the name Carisbrooke cannot possibly be derived from Wihtgares-burh, as has been sometimes supposed, as the older forms prove it to have come from brook, not burh. The lines of the present castle banks, if produced, would not correspond with those of the Tilt-yard, which is proof that the Norman castle was not formed by cutting an older fortification in two.