The pestilence broke out suddenly in the year 664, and after “depopulating” the southern parts of England, seized upon the province of Northumbria, where it raged for a long time far and wide, destroying an immense multitude of people[7]. In another passage Beda says that the same mortality occurred also among the East Saxons, and he appears to connect therewith their lapse to paganism[8].
The epidemic is said to have entered Ireland at the beginning of August, but whether in 664 or 665 is not clear. According to one of those vague estimates which we shall find again in connexion with the Black Death, the mortality in Ireland was so vast that only a third part of the people were left alive. The Irish annals do, however, contain a long list of notables who died in the pestilence[9].
Beda follows his general reference to the plague by a story of the monastery of Rathmelsigi, identified with Melfont in Meath, which he heard many years after from the chief actor in it. Egbert, an English youth of noble birth, had gone to Ireland to lead the monastic life, like many more of his countrymen of the same rank or of the middle class. The plague in his monastery had been so severe that all the monks either were dead of it or had fled before it, save himself and another, who were both lying sick of the disease. Egbert’s companion died; and he himself, having vowed to lead a life of austerity if he were spared, survived to give effect to his vow and died in the year 729 with a great name for sanctity at the age of ninety.
The plague of 664 is said, perhaps on constructive evidence[10], to have continued in England and Ireland for twenty years; and there are several stories told by Beda of incidents in monasteries which show, at least, that outbreaks of a fatal infection occurred here or there as late as 685. Several of these relate to the new monastery of Barking in Essex, founded for monks and nuns by a bishop of London in 676. First we have a story relating to many deaths on the male side of the house[11], and then two stories in which a child of three and certain nuns figure as dying of the pestilence[12]. Another story appears to relate to the plague in a monastery on the Sussex coast, seemingly Selsea[13]. Still another, in which Beda himself is supposed to have played a part, is told of the monastery of Jarrow, the date of it being deducible from the context as the year 685.