22 But also in these immense difficulties he felt the need of the authority of the Apostolic See. Backed by this authority and acting as legate of the Roman Pontiff, for almost five years he worked with indefatigable energy and consummate prudence to restore the Church of the Franks to its pristine glory. ". . . For then, with God's help and at the instigation of Boniface, the saintly archbishop, the Christian faith was reaffirmed, legitimate synods of orthodox churchmen were established in France, and everything was corrected and set right by the authority of the canons." By the initiative and leadership of St. Boniface four Councils were held for this purpose, one of them, the fourth, being a Council of the whole Frankish empire. The ecclesiastical hierarchy was restored, bishops worthy of the name and the office were chosen and assigned to their different sees, clerical discipline was re-instated and reformed as far as possible, the authority of the sacred canons was safeguarded, the morals of the people were carefully improved, superstitious practices were forbidden, heresies repudiated and condemned, and schisms happily healed. Then to the great joy of St. Boniface and all good men, the Church of the Franks was seen to flourish again and to shine with new splendor. Vices were stamped out, or diminished at least, Christian virtues were held in honor, and the necessary union with the Roman Pontiff was forged with stronger and closer bonds. The assembled Fathers of the Council which represented the entire domain of the Franks sent on to Rome, to the Sovereign Pontiff, the acts which they had solemnly decreed, as a splendid testimony of their faith and the faith of their people, to lay at the tomb of the Prince of the Apostles this proof of their reverence, piety and unity.
Source: Ecclesiae Fastos (Vatican.va)