William, to bind him faster to his interests, besides offering him one of his daughters in marriage, required him to take an oath that, he would fulfil his promises; and in order to render the oath more obligatory, he employed an artifice well suited to the ignorance and superstition of the age.

He secretly conveyed under the altar, on which Harold agreed to swear, the relics of some of the most revered martyrs; and when Harold had taken the oath, he showed him the relics, and admonished him to observe religiously an engagement which had been ratified by so tremendous a sanction.[*] The English nobleman was astonished; but dissembling his concern, he renewed the same professions, and was dismissed with all the marks of mutual confidence by the duke of Normandy.
[* Wace, p.

459, 460.MS.penes Carte, p.354.

W.
Malms, p.

93 H Hunting, p 366.