Published online by Cambridge University Press: 26 May 2015
1 Clavis enim Angliae est (Chron. Maj., Rolls Series, iii, p. 28).
2 See the Official Guidebook (1953).
3 Armitage, E.S., Early Norman Castles (1912), p. 139.Google Scholar
4 William, of Poitiers, in Scriptores Rerum Gestarum Willelmi Conquestoris, ed. Giles, (1845), pp. 108–9, 139–40.Google Scholar
5 Mediaeval Military Architecture, ii (1884), p. 12.
6 Official Guidebook, p. 3.
7 Where authenticated prehistoric pottery has recently been recovered from the outer banks by Mr P. Rahtz.
8 Hill-Forts of Northern France (Society of Antiquaries, 1957), pp. 63, 119.
9 I have to acknowledge the help in writing this note of Professor Stuart Piggott and of Mr A. J. Taylor, Deputy Chief Inspector of Ancient Monuments.