To Normandy it brings at once the climax of her power and the beginning of her fall. For a Duchy that was but secondary to the Kingdom over seas could never claim again the full strength of the rulers who had raised her first. By degrees she fell away from the land across the channel and became absorbed in the kingdom of which she was territorially a natural part. But, as we have seen, she had already done much towards the making of that kingdom in her independence, and when she formed an integral part of it herself she was its firmest bulwark against invasion from the North. In Rouen itself the beginnings of commercial greatness had been indicated, even before the coming of Rollo, by the Mint which had been established there, as a branch of that founded by Charlemagne at Quantowitch, which was destroyed by the first Pirates. The money of Rouen was marked with the letter B to signify that it was the second in importance in the Kingdom. That the trade of the town soon justified this proud distinction on its currency is evident from the law of King Ethelred II., which exempted all Rouen merchants from taxation on their wine and "Marsouin" within the port of London. Other signs of commercial activity are to be found in bridge-building, and the numerous Fairs which arose under the Norman Dukes. In 1024 a toll upon the wooden bridge of Rouen is recorded, and when in 1030, it was destroyed by a revolt under Robert the Devil, the timbers were very shortly afterwards replaced, and remained until in 1160 the Empress Matilda built the famous "Pont de Pierre" that lasted for so many centuries. Of the great Fairs of Rouen, the first seems to be that of St. Gervais, instituted by the second Duke Richard in 1020, which was given with the church of the same name to the monks of the Abbey of Fecamp. It is still held in June in the Faubourg Cauchoise. The Foire du Pre was next founded in 1064 on the day after the Ascension by the great Duke William, under the auspices of the Priory of Notre Dame du Pre which his wife had built in the suburb of Emendreville across the river, where St. Sever now stands. The church itself took the name of Bonne-Nouvelle when the Duchess heard, as she was praying there, that the Victory of Hastings had made her Queen of England. Within its walls were buried the Empress Matilda, and the hapless Prince Arthur of Brittany. It was burnt down in 1243, and struck by lightning in 1351, destroyed during the siege by the English in 1418, and rebuilt only to be destroyed again by the Calvinists in 1562. In 1604 it was rebuilt for the last time, but the rights of jurisdiction and of the fair given it by William the Conqueror were only surrendered to the town of Rouen in 1493. In 1070 the Fete de l'Immaculee Conception, called the Fete aux Normands, was celebrated for the first time in memory of a vow after a safe voyage. The Confrerie de la Conception, sometimes called Le Puy, was founded in connection with this, with the