13. =Civil War.=--It would have been well for Stephen if he had learnt from the men of the North that his strength lay in rallying the English people round him against the great barons, as the Red King and Henry I. had done when their right to the crown had been challenged by Robert. Instead of this, he brought over mercenaries from Flanders, and squandered treasure and lands upon his favourites so as to have little left for the hour of need. He made friends easily, but he made enemies no less easily. One of the most powerful of the barons was Robert, Earl of Gloucester, an illegitimate son of Henry I., who held the strong fortress of Bristol, and whose power extended over both sides of the lower course of the Severn. In =1138= Stephen, who distrusted him, ordered his castles to be seized. Robert at once declared his half-sister Matilda to be the lawful queen, and a terrible civil war began. Robert's garrison at Bristol was a terror to all the country round. He, too, gathered foreign mercenaries, who knew not what pity was. Other barons imitated Robert's example, fighting only for themselves whether they nominally took the part of Stephen or of Matilda, and the southern and midland counties of England were preyed upon by the garrisons of their castles. 14. =Stephen's Quarrel with the Clergy. 1139.=--Evil as were the men who fought on either side, it was to Stephen and not to Matilda and Robert that men as yet looked to restore order. The port towns, London, Yarmouth, and Lynn, clung to him to the last. Unfortunately Stephen did not know how to make good use of his advantages. The clergy, like the traders, had always been in favour of order. Some of them, with the Justiciar, Roger, Bishop of Salisbury, at their head, had organised the Exchequer of Henry I., had gathered in the payments due to the Crown, or had acted as judges. Yet with all their zeal in the service of the Crown, they had not omitted to provide for their own interests. Roger in particular had been insatiable in the pursuit of wealth for himself and of promotion for his family. One of his nephews, Nigel, Bishop of Ely, was Treasurer, whilst another, Alexander, was Bishop of Lincoln, and his own illegitimate son, Roger, was Chancellor. In =1139= Stephen, rightly or wrongly, threw him into prison with his son and Alexander of Lincoln. The other nephew, Nigel, escaped to his uncle's castle at Devizes, in which was the younger Roger's mother, Matilda of Ramsbury. Stephen brought her son before the castle, and put a rope round his neck to hang him unless the castle was surrendered. The unhappy mother could not bear the sight, and opened the gates to Stephen. It might have been wise to deprive a too ambitious bishop of his castle, but it was not wise personally to maltreat the clergy. Every priest in England turned against Stephen. His own brother, Henry, Bishop of Winchester, declared against him, and Stephen was obliged to do penance for his offence. The