Philip at once marched upon Normandy to execute the sentence by force of arms. He began by taking Boutavant[2037] and Tillières;[2038] thence he marched straight up northward by Lions,[2039] Longchamp, La Ferté-en-Bray,[2040] Orgueil and Mortemer,[2041] to Eu;[2042] all these places fell into his hands. Thus master of almost the whole Norman border from the Seine to the sea, he turned back to lay siege on July 8 to Radepont on the Andelle, scarcely more than ten miles from Rouen. Dislodged at the end of a week by John,[2043] he again withdrew to the border. The castle of Aumale and the rest of its county were soon in his hands.[2044] Hugh of Gournay alone, the worthy bearer of a name which for generations had been almost a synonym for loyalty to the Norman ducal house, still held out in his impregnable castle; Philip however, by breaking down the embankment which kept in the waters of a reservoir communicating with the river and the moat, let loose upon the castle a flood which undermined its walls and almost swept it away, thus compelling its defenders to make their escape and take shelter as best they could in the neighbouring forest.[2045] At Gournay Philip bestowed upon Arthur the hand of his infant daughter Mary,[2046] the honour of knighthood,[2047] and the investiture of all the Angevin dominions except the duchy of Normandy,[2048] which he evidently intended to conquer for himself and keep by right of conquest.

What John had been doing all this time it is difficult to understand. Between the middle of May and the end of June he had shifted his quarters incessantly, moving through the whole length of eastern Normandy, from Arques to Le Mans; throughout July he was chiefly in the neighbourhood of Rouen;[2049] but, except in the one expedition to Radepont, he seems to have made no attempt to check the progress of his enemies. After the knighting of Arthur at Gournay, however, he tried to make a diversion by sending a body of troops into Britanny. With their duchess dead[2050] and their young duke absent, the Bretons were in no condition for defence; Dol and Fougères were taken by John’s soldiers, and the whole country ravaged as far as Rennes.[2051] This attack stung Arthur into an attempt at independent action which led to his ruin. He and Philip divided their forces; while the French king led the bulk of his army northward to the siege of Arques,[2052] Arthur with two hundred knights[2053] moved southward to Tours,[2054] sending forward a summons to the men of his own duchy and those of Berry to meet him there for an expedition into Poitou.[2055] At Tours he was met by the disaffected Aquitanian chiefs:—the injured bridegroom young Hugh of La Marche, and two of his uncles, Ralf of Issoudun the dispossessed count of Eu, and Geoffrey of Lusignan, the inveterate fighter who had taken a leading part in every Aquitanian rising throughout the last twenty-two years of Henry’s reign, who after being Richard’s bitterest foe at home had been one of his best supporters in Palestine, and who had come back, it seems, to join in one more fight against his successor. The three kinsmen, however, brought together a force of only seventy-five knights; to which a Gascon baron, Savaric of Mauléon, added thirty more, and seventy men-at-arms.[2056] Arthur, mere boy of fifteen though he was, had enough of the hereditary Angevin wariness to shrink from attempting to act with such a small force, and in accordance with Philip’s instructions proposed to wait for his expected allies.[2057] But the Poitevins would brook no delay; and a temptation now offered itself which was irresistible alike to them and to their young leader. On her return from Castille with her granddaughter Blanche in the spring of 1200, Queen Eleanor, worn out with age and fatigue, had withdrawn to the abbey of Fontevraud,[2058] where she apparently remained throughout the next two years. The rising troubles of her duchy, however, seem to have brought her forth from her retirement once more, and she was now in the castle of Mirebeau, on the border of Anjou and Poitou. All John’s enemies knew that his mother was, in every sense, his best friend. She was at once his most devoted ally and his most sagacious counsellor, at least in all continental affairs; moreover, in strict feudal law, she was still duchess of Aquitaine in her own right, a right untouched by the forfeiture of John; and she therefore had it in her power to make that forfeiture null and void south of the Loire, so long as she lived to assert her claims for John’s benefit.[2059] To capture Eleanor would be to bring John to his knees; and with this hope Arthur and his little band laid siege to Mirebeau.[2060]

John, however, when once roused, could act with all the vigour and promptitude of his race. On July 30, as he was approaching Le Mans, he received tidings of his mother’s danger; on August 1 he suddenly appeared before Mirebeau.[2061] The town was already lost, all the gates of the castle save one were broken down, and Eleanor had been driven to take refuge in the keep; the besiegers, thinking their triumph assured, were surprised and overpowered by John’s troops, and were slain or captured to a man, the Lusignans and Arthur himself being among the prisoners.[2062] Philip, who was busy with the siege of Arques, left it and hurried southward on hearing of this disaster;[2063] John however at once put an end to his hopes of rescuing Arthur by sending the boy to prison at Falaise;[2064] and Philip, after taking and burning Tours,[2065] withdrew into his own domains.[2066] John in his turn then marched upon Tours, and vented his wrath at its capture by completing its destruction.[2067] Shortly afterwards he had the good luck to make prisoner another disaffected Aquitanian noble, the viscount of Limoges.[2068] It was however growing evident that he would soon have nothing but his own resources to depend upon. His allies were falling away; the counts of Flanders, Blois and Perche and several of the other malcontent French barons had taken the cross and abandoned the field of western politics to seek their fortunes in the East;[2069] he had quarrelled with Otto of Germany;[2070] William des Roches, after pleading in vain for Arthur’s release, was organizing a league of the Breton nobles which some of the Norman border-chiefs were quite ready to join, and by the end of October the party thus formed was strong enough to seize Angers and establish its head-quarters there.[2071] It was probably the knowledge of all this which in the beginning of 1203 made John transfer his captive nephew from the castle of Falaise to that of Rouen.[2072] Sinister rumours of Arthur’s fate were already in circulation, telling how John had sent a ruffian to blind him at Falaise, how the soldiers who kept him had frustrated the design, and how their commandant, John’s chamberlain Hubert de Burgh, had endeavoured to satisfy the king by giving out that Arthur had died of wounds and grief and ordering funeral services in his memory, till the threats of the infuriated Bretons drove him to confess the fraud for the sake of John’s own safety.[2073] How or when Arthur really died has never yet been clearly proved. We only know that at Easter 1203 all France was ringing with the tidings of his death, and that after that date he was never seen alive. In his uncle’s interest an attempt was made to suggest that he had either pined to death in his prison, or been drowned in endeavouring to escape across the Seine;[2074] but the general belief, which John’s after-conduct tends strongly to confirm, was that he had been stabbed and then flung into the river by the orders, if not actually by the hands, of John himself.[2075]

The fire which had been smouldering throughout the winter in Britanny now burst into a blaze. The barons and prelates of the duchy, it is said, held a meeting at Vannes, and thence sent to the king of France, as overlord alike of Arthur and of John, their demand for a judicial inquisition before the peers of the realm—that is, before the supreme feudal court of France—into John’s dealings with their captive duke.[2076] A citation was accordingly sent to John, as duke of Normandy, either to present Arthur alive,[2077] or to come and stand his trial before the French king’s court on a charge of murder. John neither appeared nor sent any defence; the court pronounced him worthy of death, and sentenced him and his heirs to forfeiture of all the lands and honours which he held of the Crown of France.[2078] The trial seems to have been held shortly after Easter. The legal force of the sentence need not be discussed here.[2079] Its moral justice can hardly be disputed, so far as John himself is concerned; and Philip’s action did little more than precipitate the consequences which must sooner or later have naturally resulted from John’s own deed. John in committing a great crime had committed an almost greater blunder. Arthur’s death left him indeed without a rival in his own house. It left him sole survivor, in the male line, alike of the Angevin and Cenomannian counts and of the ducal house of Normandy. Even in the female line there was no one who could be set up against him as representative of either race. Eleanor of Britanny, the only remaining child of his brother Geoffrey, was a prisoner in her uncle’s keeping. The sons of his sister Matilda had cast in their lot with their father’s country and severed all ties with their mother’s people; the children of his sister Eleanor were still more complete strangers to the political interests of northern Gaul, and the only one of them who was known there at all was known only as the wife of the heir to the French crown. But these very facts set John face to face with a more dangerous rival than any of the ambitious kinsmen with whom the two Williams or the two Henrys had had to contend. They drove his disaffected subjects to choose between submission to him and submission to Philip Augustus. The barons of Anjou, of Maine, of Britanny or of Normandy had no longer any chance of freeing themselves from the yoke of the king from over-sea who had become a stranger to them all alike, save by accepting in its stead the yoke of the king with whom they had grown familiar through years of political and personal intercourse, and whom, in theory at least, even their own rulers had always acknowledged as their superior. Anjou, Maine and Britanny had all resolved upon Richard’s death that they would not have John to rule over them; Normandy was now fast coming to the same determination. Under the existing circumstances it would cost them little or no sacrifice to accept their titular overlord as their real and immediate sovereign. So long as Arthur lived, Philip had been compelled to veil his ambition under a shew of zeal for Arthur’s rights; now he could fling aside the veil, and present himself almost in the character of a deliverer. If the barons did not actually hail him as such, they were at any rate for the most part not unwilling to leave to him the responsibility of accomplishing their deliverance, and to accept it quietly from his hands.

Philip took the field as soon as the forfeiture was proclaimed. Within a fortnight after Easter he had taken Saumur[2080] and entered Aquitaine; there he seems to have spent some weeks in taking sundry castles, with the help of the Bretons and the malcontent Poitevin nobles.[2081] One great Norman baron, the viscount of Beaumont, had already openly joined the league against John;[2082] and as Philip turned northward again, the count of Alençon formally placed himself and all his lands at the disposal of the French king.[2083] Thus secure of a strong foothold on the southern frontier of Normandy, and already by his last year’s conquests master of its north-eastern border from Eu to Gisors, Philip set himself to win the intervening territory—the remnant of the viscounty of Evreux. One by one its castles—Conches,[2084] Vaudreuil[2085] and many others—fell into his hands. Messenger after messenger came to John as he sat idle in his palace at Rouen,[2086] all charged with the same story: “The king of France is in your land as an enemy, he is taking your castles, he is binding your seneschals to their horses’ tails and leading them shamefully to prison, and he is dealing with your goods according to his own will and pleasure.” “Let him alone,” John answered them all alike; “I shall win back some day all that he is taking from me now.” The barons who still clave to him grew exasperated as they watched his unmoved face and heard his unvarying reply; some of them began to attribute his indifference to the effects of magic; all, finding it impossible to break the spell, turned away from him in despair. One by one they took their leave and withdrew to their homes, either passively to await the end, or actively to join Philip. Even Hugh of Gournay, who had held out so bravely and so faithfully a year ago, now voluntarily gave up his castle of Montfort.[2087] Not till near the middle of August did John make any warlike movement; then he suddenly laid siege to Alençon; but at Philip’s approach he fled in a panic;[2088] an attempt to regain Brezolles ended in like manner,[2089] and John relapsed into his former inactivity. That the conqueror did not march straight to the capture of Rouen, that he in fact made no further progress towards it for six whole months, was owing not to John but to his predecessor. Richard’s favourite capital was safe, so long as it was sheltered behind the group of fortifications crowned by his “saucy castle” on the Rock of Andely.