Note 4 — Chapter I
Reading edition
The simplest form of the Saga occurs in Gildas, with very few historical ingredients. Nennius enlarges it with Anglo-Saxon traditions. Beda has combined both with some notices from the real history. Since the departure of the Romans was rightly fixed about 409, and Gildas said the Britons had rest for forty years, Beda settled that the Saxons arrived in 449.