Murdac was consecrated by Eugenius on 7 December 1147, and Robert appears to have supported the new archbishop, or at least not to have actively opposed him.

Throughout his approximately 14 years as chancellor, Robert only witnessed 20 charters certainly and perhaps another 13 that are not securely attributed to Robert.

Stephen's two previous chancellors, Roger le Poer and Philip de Harcourt, had a much higher rate of attesting charters – 62 in 3.5 years for Roger and 12 in 9 months for Philip.

Stephen besieged Drax Castle in the summer of 1154, which had earlier been given to Robert's nephew Robert.

The younger Robert may have objected to giving up his castle to the previous owners and the elder Robert may have taken offence at these events.

Hugh de Montfort-sur-Risle, Gilbert de Gant – who died before his father, and Walter de Gant.

If Robert was a son of Gilbert, he was a younger son, probably the youngest of the four brothers, and probably was born sometime around 1085, as his supposed parents married about 1075 and there were older siblings.

A further appearance is in a document of his brother Walter dating between 11.

Three charters which date from March 1140 to January 1141 and are supposed to be witnessed by Robert all have difficulties with either the dating or whether the signature attributed to Robert is actually Robert, so exact dating of his term of office isn't possible from charter evidence.

Robert held the office of Dean of York from at least 1147, but may have occupied the office as early as 1142.