But the advance was again delayed by a bitter quarrel which had broken out between Bohemond and Raymond of Toulouse over the possession of Antioch.[94] And now we find Robert, in the rôle of peacemaker, joining with the other disinterested leaders who desired to respect their pledges to the Emperor in an effort to arbitrate the difficulties.[95] But all these efforts were in vain, for when the arbitrators had arrived at a decision on the merits of the case, they lacked authority to enforce their judgment, and dared not announce it lest matters should be made worse. Finally, however, a truce was agreed upon in the hope of continuing the Crusade;[96] and Robert departed with Raymond and others to lay siege to Marra.[97] But hardly had this place been taken (11 December),[98] when the quarrel between Bohemond and Raymond flamed up afresh; and now the controversy spread from the leaders to the ranks, and the army was divided into two bitter factions.[99] Again Robert joined the other leaders in council at Rugia in an attempt to bring about a reconciliation;[100] but again all efforts failed, and Raymond and Bohemond remained at enmity.

Meanwhile, the count of Toulouse, yielding to popular pressure in the army, determined upon an independent advance to Jerusalem; and in order to isolate his rival the more effectually, he undertook to hire other leaders to follow him. To Godfrey of Bouillon and to Robert Curthose he offered 10,000 solidi, to the count of Flanders 6000, to Tancred 5000, and to others in accordance with their dignity.[101] Tancred definitely closed with the offer,[102] and there is reason for believing that Robert Curthose also accepted it.[103] In any case, Robert joined Raymond and Tancred at Kafartab, 14 January 1099, and two days later the three leaders moved southward with their followers towards Jerusalem, Robert and Tancred leading the vanguard while Raymond brought up the rear. As they moved southward up the beautiful valley of the Orontes, panic-stricken emirs along their line of march sent to purchase peace at any price and poured out their wealth in gifts, while the plunder of a fertile countryside supplied the crusaders with still greater abundance.[104] Crossing the river at a ford a short distance above Shaizar, they made their way over the mountainous divide and descended towards the sea into the rich valley of El-Bukeia.[105] Halting there for a fortnight’s rest and the celebration of the Purification,[106] they crossed the valley and encamped before the great fortress of Arka on the northern slopes of Lebanon (14 February). The neighboring port of Tortosa fell into their hands almost immediately, and when easy communication with the sea had thus been secured, they settled down to the siege of Arka.[107] This caused another delay of three months, and though Robert, Raymond, and Tancred each built siege towers,[108] no progress was made towards reducing the fortress. Even with the aid of Godfrey and Robert of Flanders, who came up with their forces 14 March, all their efforts were unavailing.[109]

Meanwhile, fresh disputes arose within the ranks of the army; and the Provençals, who at Marra had vented their rage upon Bohemond and his followers, now turned against Robert and the northern Normans. The genuineness of the so-called Holy Lance had been called in question.[110] Many of the Normans believed that the discovery of the Lance at Antioch had been a mere hoax got up by the vision-loving followers of Count Raymond; and on this question opinion in the army was sharply divided.[111] Arnulf of Chocques, Duke Robert’s chaplain, was regarded as the “chief of all the unbelievers,”[112] and upon him the bitter hatred of the Provençals was concentrated. An attempt was made to settle the controversy by an ordeal; but this resulted indecisively, and each side continued to believe as before. Arnulf was firmly supported by the duke and the Norman party generally, and the attacks of his enemies met with no success.[113]

While time was thus being wasted in disputes and recriminations the season was rapidly advancing; and since Arka showed no signs of capitulating, the leaders, Duke Robert among them, decided to abandon the siege and push on forthwith to Jerusalem.[114] Breaking camp 13 May, they advanced along the coast road by rapid marches, and on 7 June arrived before the Holy City,[115] ‘rejoicing and exulting.’[116]

Of the multitudes who had set out from Europe three years before, comparatively few had endured to complete this last stage of the pilgrimage. Not only were the ranks of the army greatly thinned, but half of the leaders had either fallen behind or turned back. The bishop of Le Puy had died at Antioch the previous August; Baldwin, Duke Godfrey’s brother, had turned aside to become count of Edessa; Bohemond had remained to pursue his ambitious schemes at Antioch; Hugh of Vermandois had been sent upon a mission to the Emperor; and Stephen of Blois had deserted and returned to Europe to face the reproaches of his more heroic Norman wife.

With forces so diminished, a complete investment of Jerusalem was out of the question. If the city was to be taken at all, it would have to be carried by storm. The crusaders, therefore, selected approaches and prepared for an assault upon the walls. If, as has been suggested, Robert Curthose had been, since the previous January, in the hire of Raymond of Toulouse,[117] the connection between them was now severed; and during the siege of Jerusalem Robert’s operations were strategically combined with those of Duke Godfrey and Robert of Flanders. With them he took up his position before the northern wall to the west of St. Stephen’s church.[118]

The assault upon the city on 13 June failed miserably through the almost complete lack of siege machinery; and it became clear that far more elaborate preparations would have to be made. It was decided, therefore, to construct at all costs two movable wooden siege towers and other apparatus.[119] Count Raymond assumed responsibility for one of the towers; the providing of the other was undertaken by Godfrey, Robert Curthose, and Robert of Flanders.[120] Owing to the barrenness of the region around Jerusalem, wood for the construction was not to be had near at hand; but guided by a friendly Syrian Christian, the two Roberts with a band of knights and foot soldiers made their way to a distant forest in the hills ‘in the direction of Arabia’, and, loading wood upon camels, brought it back to Jerusalem, where the building operations were pushed forward with feverish activity for almost four weeks.[121] When the work had almost reached completion, Godfrey and his associates determined upon a sudden change of plan; and, during the night of 9-10 July, they had their tower and other engines taken apart and moved a mile eastward towards the valley of Jehoshaphat, to a point where level ground offered a good approach, and where the wall was weaker, not having been reënforced by the beleaguered garrison.[122]

During the next three days the siege tower and other apparatus were again assembled and set in order for action; and at dawn 14 July the assault was begun.[123] All day long it was pressed with vigor, and though the defenders fought with the heroism of desperation, endeavoring to set fire to the tower as it was moved forward,[124] all their efforts failed. Next morning at daybreak the attack was renewed, Robert Curthose and Tancred operating the mangonels which cleared the way for the tower to be rolled up close to the wall.[125] The garrison still stood stoutly to the defence and let down bags filled with straw to break the shock of the missiles hurled from the mangonels. The Christians were filled with discouragement.[126] But as the hour approached at which the Saviour was raised upon the cross (9 A.M.), their mighty effort at last was crowned with success.[127] With burning arrows they managed to fire the sacks of straw with which the wall was protected; and as the flames burst forth the defenders were compelled to retire. Then dropping a bridge from the tower to the wall, the crusaders rushed across and carried all before them.[128] Soon the gates were opened and the city was given over to carnage and plunder.[129] With victory assured, the blood-stained warriors paused momentarily in their work of destruction, and, “rejoicing and weeping from excess of joy,” turned aside to render adoration at the Sepulchre and fulfil their vows;[130] but not for two days were the pillage and slaughter ended.[131]

It remained for the crusaders to elect a ruler of the newly conquered city and territory. After two conferences[132] and much discussion the choice of the leaders fell upon Godfrey of Bouillon, the position having first been offered to Raymond of Toulouse.[133] “Though unwilling,” Godfrey was elected “advocate of the church of the Holy Sepulchre.”[134] A generation later the belief was widely current that the honor had also been offered to Robert Curthose and declined by him;[135] but it rests upon no acceptable contemporary authority, and appears to have been a later invention.

Hardly had Godfrey been raised to his new dignity when he became involved in a dispute with the count of Toulouse, not unlike the quarrel which had arisen between Raymond and Bohemond after the capture of Antioch. Raymond was holding the Tower of David and declined to hand it over to the new ruler. But Godfrey was strongly supported in his just demand by Robert Curthose and Robert of Flanders and by many even of Raymond’s own followers, who were eager to return home and desired the count to lead them; and under pressure Raymond, always sensitive to popular opinion, was obliged to yield.[136] It was during this same period that Duke Robert’s chaplain, Arnulf of Chocques, was raised to the dignity of acting patriarch of Jerusalem (1 August).[137] Though only a priest—perhaps not even in subdeacon’s orders—and of obscure birth, he had contrived by his learning, personality, and eloquence to make himself the leader of the anti-Provençal party; and his elevation to this high position was another notable victory for the enemies of Count Raymond.