Editing William de St-Calais (section)

==Work for William the Conqueror==
During William the Conqueror's reign, St-Calais was a frequent witness on charters. While it is often difficult to determine who was considered most important on a charter's witness list, placement near the top of the list is usually understood to mean that the signatory was considered important. Almost always during the Conqueror's reign, St-Calais is listed right below the royal family and the archbishops.<ref name=Aird291/>

The king sent St-Calais on diplomatic missions to the French royal court and to Rome.<ref name=Aird291>Aird "Absent Friend" ''Anglo-Norman Durham'' p. 291</ref> After the king's imprisonment of Odo of Bayeux, Pope Gregory VII complained to him. The pope was also concerned about the king's refusal to allow the delivery of papal letters to the English bishops unless royal permission was secured. To placate the pope, the king dispatched St-Calais to Rome, possibly with Lanfranc, to explain to the pope the reasons for imprisoning Odo.<ref name=Feudal130>Barlow ''Feudal Kingdom'' p. 130</ref> St-Calais also served as a commissioner in the south-western part of England for the Domesday Book, which aimed to survey the whole of England and record who owned the lands.<ref name=Chibnall111>Chibnall ''Anglo-Norman England'' p. 111</ref><ref name=Holt47>Holt "1086" ''Domesday Studies'' p. 47</ref> Some historians, including [[David Bates (historian)|David Bates]], have argued that St-Calais was the driving force behind the organization of the entire Domesday survey,<ref name=Chaplais76>Chaplais "William of Saint-Calais" ''Domesday Studies'' pp. 76–77</ref><ref name=BatesWC201>Bates ''William the Conqueror'' p. 201</ref> although other candidates have been put forward, including Samson, Bishop of Worcester, before he became bishop.<ref name=Chaplais68>Chaplais "William of Saint-Calais" ''Domesday Studies'' pp. 68–70</ref> [[Pierre Chaplais]], who argues for St-Calais being the main organizer of the survey, argues the bishop's exile in 1088 interrupted work on the ''Little Domesday Book'', a subproject of the survey which was left uncompleted.<ref name=Decode98>Roffe ''Decoding Domesday'' p. 98</ref>