The Abbey-Church of St. Peter at Westminster appears to be very ancient, though far from being so ancient as is vulgarly reported.
Some relate, without any authority to support the conjecture, that it was founded in the days of the Apostles by St. Peter himself; others that it was erected by King Lucius about the year 170. And by some it is said to have been built by King Sebert, the first Christian king of the East-Saxons (Essex and Middlesex), anno 611. But I take it for granted the church was not built before the convent or abbey it belonged to. People did not use to build churches at a distance from town, unless for the service of convents or religious houses. But neither in the times of the Apostles, nor in the supposed reign of King Lucius, in the second century, was there any such thing as a convent in England, or perhaps in any part of Christendom. During the dominion of the Saxons in this island, monasteries indeed were erected here, and in many other kingdoms, in great abundance; and as the monks generally chose thick woods or other solitary places for their residence, where could they meet with a spot of ground fitter for their purpose than this woody island called Thorney, then destitute of inhabitants? But I am inclined to think that neither this or any other monastery was erected in South Britain till the seventh century, after Austin the monk came into England. As to the tradition of its having been built upon the ruins of the temple of Apollo, destroyed by an earthquake, I do not doubt but the monks were very ready to propagate a fable of this kind, who formed so many others to show the triumphs of Christianity over paganism, and to induce their proselytes to believe that heaven miraculously interposed in their favour by earthquakes, storms, and other prodigies. But to proceed. When the convent was erected, I make no doubt that there was a church or chapel built as usual for the service of the monks; but it is evident from history that the dimensions of the first or second church that stood here were not comparable to those of the present church.
We may rely upon it that about the year 850 there was a church and convent in the island of Thorney, because about that time, London being in the possession of the Danes, the convent was destroyed by them (not in the year 659, as some writers have affirmed, because the Danes did not invade England till nearly 200 years afterwards). The abbey lay in ruins about a hundred years, when King Edgar, at the instance of Dunstan, Abbot of Glastonbury (and afterwards Archbishop of Canterbury), rebuilt this and several other monasteries, about the year 960. Edward the Confessor, a devout prince, enlarged this church and monastery, in which he placed the Benedictine monks, ordered the regalia to be kept by the fathers of the convent, and succeeding kings to be crowned here, as William the Conqueror and several other English monarchs afterwards were, most of them enriching this abbey with large revenues; but King Henry III. ordered the church built by Edward the Confessor to be pulled down, and erected the present magnificent fabric in the room of it, of which he laid the first stone about the year 1245.
That admired piece of architecture at the east end, dedicated to the Virgin Mary, was built by Henry VII., anno 1502, and from the founder is usually called Henry the VII.’s Chapel. Here most of the English monarchs since that time have been interred.