would have been an insult to the king. Shortly after the trial, Robert interceded with the king to order that no injury be done to Becket, who went into voluntary exile. Early in Becket's exile, Robert received a papal censure for not doing more to support Becket. In summer 1165, Robert accompanied Gilbert Foliot, the Bishop of London, on a papal mission to King Henry, to convey to the king Pope Alexander's complaints about the king's behaviour. The king had been preventing his subjects from visiting or appealing to the papacy, and Alexander wished to protest against that, as well as against the king's treatment of Becket. In 1166, Becket tried to convince Robert to switch sides, writing to Robert in conciliatory tones. John of Salisbury, a supporter of Becket's, prevailed upon two French academics to write to Robert, criticising him for hypocrisy. In October 1166, Becket ordered Robert and Roger of Worcester to attend him in France, so they could give him guidance on his dispute with the king. When they informed the king of their intended journey he forbade them to leave England. Nevertheless, they attempted to sneak out of the country in February 1167. They were apprehended on 2 February, and ordered to remain in England not only in the king's name, but also in Alexander's. Theology Robert's theology is expressed in his three surviving works, the Quaestiones de divina pagina, Quaestiones de epistolis Pauli, and the unfinished Sententiae. The dating of the works is problematic, but it appears that the first two works were composed between 1145 and 1157. The Sententiae was revised twice, probably during the 1150s and the 1160s. His works, especially the Sententiae, cover the entire subject of theology and are strictly orthodox in Christian doctrine. Robert's Sententiae, or Summa Theologica, was well known in his time, and has been considered a key connection in theology between Robert's own teachers' works and the works of Peter Lombard. Robert is the first commentator on St Paul to say that resistance to a tyrant might be vindicated by the Bible. Robert also opined that a king might be excommunicated if royal actions harmed the church. Robert used Gratian's works as sources for his own, citing the Decretum Gratiani. Although he used this work, which dealt with church law, he does not appear to have been considered a lawyer, and his training was that of a