Castle at the start of 1141, Robert and Ranulf advanced on the King's position with a somewhat larger force. When the news reached Stephen, he held a council to decide whether to give battle or to withdraw and gather additional soldiers: Stephen decided to fight, resulting in the Battle of Lincoln on 2 February 1141. The King commanded the centre of his army, with Alan of Brittany on his right and William of Aumale on his left. Robert and Ranulf's forces had superiority in cavalry and Stephen dismounted many of his own knights to form a solid infantry block; he joined them himself, fighting on foot in the battle. Stephen was not a gifted public speaker, and delegated the pre-battle speech to Baldwin of Clare, who delivered a rousing declaration. After an initial success in which William's forces destroyed the Angevins' Welsh infantry, the battle went badly for Stephen. Robert and Ranulf's cavalry encircled Stephen's centre, and the King found himself surrounded by the enemy army. Many of his supporters, including Waleran de Beaumont and William of Ypres, fled from the field at this point but Stephen fought on, defending himself first with his sword and then, when that broke, with a borrowed battle axe. Finally, he was overwhelmed by Robert's men and taken away from the field in custody. Robert took Stephen back to Gloucester, where the King met with the Empress Matilda, and was then moved to Bristol Castle, traditionally used for holding high-status prisoners. He was initially left confined in relatively good conditions, but his security was later tightened and he was kept in chains. The Empress now began to take the necessary steps to have herself crowned queen in his place, which would require the agreement of the church and her coronation at Westminster. Bishop Henry summoned a council at Winchester before Easter in his capacity as papal legate to consider the clergy's view. He had made a private deal with the Empress Matilda that he would deliver the support of the church, if she agreed to give him control over church business in England. Henry handed over the royal treasury, rather depleted except for Stephen's crown, to the Empress, and excommunicated many of Stephen's supporters who refused to switch sides. Archbishop Theobald of Canterbury was unwilling to declare Matilda queen so rapidly, however, and a delegation of clergy and nobles, headed by Theobald, travelled to