Gregory was not merely a rhetorician or theorist. Even before becoming pope, as archdeacon of the Roman church, he had taken a keen interest in wars on behalf of the church, in Sicily, England and Milan. As pope, this continued. In 1076, he offered absolution of all sins to the knights of Count Roger of Sicily on a projected campaign against the Saracens as he did to those joining an attack on Byzantium in 1080 to restore, as Gregory mistakenly thought, the rightful emperor. Throughout the 1070s and 1080s, he tried to enlist
The ideological rhetoric of the Investiture Contest wars and the recruitment of knights to establish and protect the Peace and Truce of God depended on the susceptibility of western knights to a religiously framed ideology of war. The Anglo-Norman chronicler Orderic Vitalis left a sharp portrait of one such pious warlord. Hugh, count of Avranches in western Normandy and earl of Chester in north-west England, a nephew of William the Conqueror, had done very well out of the Norman conquest of England, a classic example of that eleventh-century aristocratic mobility and fluid opportunistic careerism that fuelled the First Crusade. In establishing his power on the fringes of the Anglo-Norman realm, Hugh, called by some ‘the wolf’, acquired a foul reputation; vicious, violent, addicted to gambling, a lecher and a glutton, so fat he could hardly move, he was ‘a great lover of the world’ (not a recommendation in the eyes of the monk who used the phrase). Brave, extravagant and generous to the point of prodigality, he attracted around him a rowdy household in which many were as debauched and sybaritic as he. Yet Hugh was also a patron of monks and an old and close friend of the saintly abbot and archbishop Anselm. He employed a chaplain, Gerold, who furthered the moral instruction of his household with stories of ‘holy knights’ from the Old Testament and of Christian military heroes, including the legendary William of Orange, a saintly warrior in one of the earliest cycles of
The most dramatic and quixotic of Gregory’s military plans was that of 1074, when he announced his intention to lead in person an army to help the Christians of the eastern Mediterranean, who were beleaguered by the Seljuk Turks, ‘to take up arms against the enemies of God and push forwards even to the sepulchre of the Lord under His supreme leadership’. The diplomatic context, involving a delicate and unstable triangle of Byzantium, the papacy and the Normans, was specific, in part a consequence of the Greek defeat by the Seljuk Turks at Manzikert (1071). However, the objects of the enterprise – apparently Jerusalem, the consolidation of relations with the eastern church, the demonstration of active papal leadership of the whole of Christendom, lay and ecclesiastical, east and west – as well as the rhetoric, pointed directly to the path his protégé Urban II later chose. The language was especially striking, with its persistent emphasis, not only on St Peter, as was usual in his calls to arms, but on Christ Himself: