Note 50
From Chapter 56 of the Decline & Fall

Muratori carries their antiquity above the year (1066) of the death of Edward the Confessor, the rex Anglorum to whom they are addressed. Nor is this date affected by the opinion, or rather mistake, of Pasquier (Recherches de la France, l. vii. c. 2) and Ducange, (Glossar. Latin.) The practice of rhyming, as early as the 7th century, was borrowed from the languages of the North and East, (Muratori, Antiquitat. tom. iii. dissert. xl. p. 686 - 708.)