in England, but argues the evidence does not permit deciding exactly where this took place. Soon after his arrival, Augustine founded the monastery of Saints Peter and Paul, which later became St Augustine's Abbey, on land donated by the king. In a letter Gregory wrote to the patriarch of Alexandria in 598, he claimed that more than 10,000 Christians had been baptised; the number may be exaggerated but there is no reason to doubt that a mass conversion took place. However, there were probably some Christians already in Kent before Augustine arrived, remnants of the Christians who lived in Britain in the later Roman Empire. Little literary traces remain of them, however. One other effect of the king's conversion by Augustine's mission was that the Frankish influence on the southern kingdoms of Britain was decreased. After these conversions, Augustine sent Laurence back to Rome with a report of his success, along with questions about the mission. Bede records the letter and Gregory's replies in chapter 27 of his Historia ecclesiastica gentis Anglorum; this section of the History is usually known as the Libellus responsionum. Augustine asked for Gregory's advice on a number of issues, including how to organise the church, the punishment for church robbers, guidance on who was allowed to marry whom, and the consecration of bishops. Other topics were relations between the churches of Britain and Gaul, childbirth and baptism, and when it was lawful for people to receive communion and for a priest to celebrate mass. Further missionaries were sent from Rome in 601. They brought a pallium for Augustine and a present of sacred vessels, vestments, relics, and books. The pallium was the symbol of metropolitan status, and signified that Augustine was now an archbishop unambiguously associated with the Holy See. Along with the pallium, a letter from Gregory directed the new archbishop to consecrate 12 suffragan bishops as soon as possible and to send a bishop to York. Gregory's plan was that there would be two metropolitans, one at York and one at London, with 12 suffragan bishops under each archbishop. As part of this plan, Augustine was expected to transfer his archiepiscopal see to London from Canterbury. This move never happened; no contemporary sources give the reason, but it was probably because London was not part of Æthelberht's domains. Instead, London was part of the kingdom of Essex, ruled by Æthelberht's nephew Saebert of