Asser has been used with caution, where his information seems to be really contemporary.

I have also derived some occasional hints from the old British bards, from _Beowulf_, from the laws, and from the charters in the "Codex Diplomaticus." These written documents have been helped out by some personal study of the actual early English relics preserved in various museums, and by the indirect evidence of local nomenclature.
Among modern books, I owe my acknowledgments in the first and highest degree to Dr.E.A.Freeman, from whose great and just authority, however, I have occasionally ventured to differ in some minor matters.
Next, my acknowledgments are due to Canon Stubbs, to Mr.Kemble, and to Mr.J.R.

Green.

Dr.Guest's valuable papers in the Transactions of the Archaeological Institute have supplied many useful suggestions.

To Lappenberg and Sir Francis Palgrave I am also indebted for various details.