Note 175 — Chapter III · BRITAIN AFTER THE ROMANS.
Reading edition
Contra illum quatuor reges Urbgen et Riderchen et Guallauc et Morcant dimicaverunt.—Gen. Nennius. The genealogy of these four kings is given in the Welsh pedigrees annexed to Nennius.—Chron. Picts and Scots, pp. 15, 16. The reader is referred to the Four Ancient Books of Wales, vol. i. pp. 336-355, for the historical poems relating to the battles fought in this war.