It was during Jaruman's episcopate that difficulties arose between the Church in Britain and the Church in Rome. Rome had sent messengers to Britain, and they had been the means of converting a large portion of the south coast and of East Anglia; but there were differences in the two Churches, and one particularly caused much trouble. The Roman Church had always kept Easter Day on a Sunday, but the British Church held this feast on March 14, whatever day of the week it might be. A synod was called at Whitby, and it was decided, mainly through the instrumentality of Wilfrid, the future bishop of York, in favour of the Roman Sunday. In this way, it may be said, began the rule of Rome in the English Church. Shortly after, in 667, Jaruman died, and no successor was appointed for two years. During this time, Theodorus of Tarsus became Archbishop of Canterbury, and to him belongs the credit of making the English Church: before, each kingdom had had its own Church, but Theodore welded them together into one whole, and completed their dependence on the bishop of Rome. Wilfrid was made bishop of York, and St. Chad, who had been consecrated to that see, retired to the abbey at Lastingham, only in the next year, 669, to be reconsecrated as bishop of Mercia by the new Archbishop of Canterbury.
St. Chad or Ceadda (669-672) made his seat at Lichfield, and in so doing founded the diocese of Lichfield.
St. Chad, as has been stated before, was the patron saint of Lichfield. What is known of him is principally derived from Bede's "Ecclesiastical History of the English Nation." From this we learn that when not on his missionary travels over the diocese he spent most of his time in prayer, and in meditation on death and supernatural things. His method was to proceed from place to place in his diocese on foot; and there is a story of Theodore taking St. Chad in his arms and lifting him on to a horse which he presented to him. He founded the abbey of Barrow-on-Humber, which King Wulphere endowed with fifty hides of land. His headquarters, as we have said, were at Lichfield, and he built, or finished building, a small church near what is still known as St. Chad's Well, at the eastern end of Stowe Pool.
Like his predecessors' his time was short; only for two years was he allowed to labour at Lichfield. There is a beautiful legend of his death which has been well told by Dean Bickersteth. "A week before his death a sound of angelic melody was heard coming from the south-east, until it reached and filled the little oratory where he was praying. This the good bishop interpreted to be his summons to heaven. The voices, he privately told Ovin, were those of angels. The messenger of death, that 'lovable guest,' was with them. They would come again in seven days and take him with them. About the same time, Egbert, a Northumbrian who had been a fellow-student with St. Chad in an Irish monastery, dreamt that he saw the soul of Cedda, Chad's brother, descending from heaven with a company of angels to take the soul of Chad with him into the heavenly kingdom." As he had foretold, so he died; but he was not forgotten, and many were the miracles said to have been performed at his shrine. His bones were removed from their first resting-place near Stowe Church into a beautiful shrine in the cathedral, where they remained until the Reformation, when they were taken away, and are now said to be in the Roman Catholic cathedral at Birmingham.
There is another legend concerning St. Chad which has become more closely attached to Peterborough than to Lichfield, but it must be briefly stated here, as the story appears in some of the decorations of the cathedral. Bede does not mention it, and it has been given in varying forms by different writers. Briefly, the essence of the legend is that Wulphere, the king of Mercia, had killed two of his sons, Wulfade and Rufin, on account of their having been baptised by St. Chad. Each of these young princes had been hunting in the forest when he came across a hart with a rope round its neck. The prince gave chase, and the hart led him to St. Chad, who, having prayed with him, baptised him. This happened to both Wulfade and Rufin separately. Then Wulphere in his anger slew them. Afterwards he repented, and setting out to St. Chad, was led there by the same hart, and found the saint at prayer, with his cloak hanging on a sunbeam. Wulphere was absolved on condition that he should expiate his crime by founding churches and monasteries all over his kingdom. Lichfield is said to have been one of these churches, and Peterborough one of these monasteries. Many churches have been dedicated to St. Chad, especially in the Midlands, and in the east of London there was a well known as St. Chad's Well, where miracles were performed; and it was noted for its medicinal waters up to quite recent times. A large district in east London is still called after St. Chad's Well in the corrupted form of Shadwell.
The next bishop was Winfrid (672-675), the abbot of St. Chad's Abbey at Barrow-on-Humber; but in the year that he was appointed a church council was held by Theodore, at which it was decided to split up some of the dioceses. Lichfield being one of the largest, would have been divided at once, but Winfrid, whether for his own sake or at the instigation of King Wulphere, resisted, and the diocese remained unchanged until Wulphere died, when in 675, Winfrid, still remaining opposed to the scheme, was deprived. He subsequently was murdered on his way to Rome.
The new bishop was Saxwulf (675-691), abbot of Peterborough, and the work of cutting up the diocese was begun. The sees of Hereford and Worcester were made. Lincolnshire was taken from the diocese, and the Middle Angles became the see of Leicester. However, Lichfield still remained an enormous diocese, and when Saxwulf died he was bishop of both Lichfield and Leicester. He was succeeded by Hedda (691-721), who is said to have determined the site of the present cathedral by building a church there. However, nothing remains of this cathedral, but it is always supposed that Hedda brought St. Chad's bones from Stowe Church and deposited them here. The cathedral was dedicated to St. Peter.
Hedda and his successor, Aldwin (721-737), were bishops of both Lichfield and Leicester. They were followed at Lichfield by Witta (737-752), and the connection with Leicester ceased. In 756 Offa, the greatest of the Mercian kings, ascended the throne. Offa added a part of Shropshire to the diocese, which from this time remained the same in extent down to the Reformation. Here followed three bishops—Hemele (752-764), Cuthred (765-768), and Berthum (768-779)—of whom little is known; and then came Higbert or Hygeberht (785-801), who holds a remarkable position in the history of the diocese. Offa had by this time advanced himself into the leading position in England; and so great was his power that Charlemagne called him emperor of the west, keeping for himself the title of emperor of the east. But Offa was first of all king of Mercia, and it did not please him to think that his bishops were subordinate to an archbishop who lived in one of his subject states; and so he determined "to humble Canterbury and exalt Lichfield." He began by confiscating all the property of Canterbury situated in Mercia, and then he appealed to the Pope that the bishop of Lichfield should be made an archbishop. The Pope assented, a council held at Chelsea in 785 also agreed, and Higbert, the new bishop, became archbishop, with the bishoprics of Worcester, Leicester, Lincoln, and Hereford, parts of the old diocese of Mercia, as well as Elmham and Dunwich, to make up his province. Offa died in 796, and immediately a stir was made to restore Canterbury to its old dignity. The negotiations were long, but in 802 Pope Leo decided in favour of Canterbury, and the council of Cloveshoe in 803 formally annulled the metropolitan dignity of Lichfield. Aldulf (801-812), who had succeeded Higbert as archbishop, became bishop, but took precedency after Canterbury overall the other bishoprics, and Herewin (812-818) on his appointment submitted to Canterbury.
Shortly afterwards Æthelwald (818-828) organised the bishopric upon the basis of its present constitution. Churches were springing up all over the diocese, with their own clergy, and so, although the church at Lichfield remained the headquarters of the diocese, yet the clergy attached to it were no longer to be responsible for the ministrations of the whole diocese, but were to confine themselves to the estates of the bishop and the cathedral, where they were to dwell under canons or rules. It is possible that from this time the cathedral clergy became known as canons.
Then comes the period of the invasion by the Danes, whereby the country was devastated and the rich abbeys were destroyed. Peterborough, Crowland, and Ely, "went up in flames"; the enemy advanced along the Trent, and levelled to the ground the famous monastery of Repton—the Walhalla of Mercia—where countless kings and princes had been buried. What happened at Lichfield is not known, but many bishops succeeded one another, of whose consecration, in some cases, the dates are so doubtful that it is not worth while to give them. Their names are:—Hunbert, 828; Kynebert; Tunfrith; Ella; Algar, 941; Kinsy, 949; Winsy, 964; Elfege, 973; Godwin, 1004; Leofgar, 1020; Brithmar, 1026; and Wulsy, 1039; but little is known of them, though these two centuries are far from being unimportant in the history of the diocese.