[1] He was chancellor of the see of Lincoln when Henry III nominated him to be Archbishop of Canterbury in opposition to Walter d'Eynsham in 1229.
[1] Grant was provided to the see of Canterbury on 19 January 1229 by Pope Gregory IX,[2] and received the temporalities of the see probably on 24 March 1231.
[1] On 26 January 1231, at a council at Westminster Grant, along with other bishops, objected to Henry III's earlier demand of a second scutage payment.
[2] Grant found himself in conflict with Hubert de Burgh, the Justiciar, over the wardship of the de Clare estates at Towbridge, which conflict the archbishop lost after King Henry III of England sided with his justiciar.
[1] It has been speculated that he is the same as Richard of Wetheringsett, the earliest known chancellor of the University of Cambridge, who served some time between 1215 and 1232, and author of the summa Qui bene presunt.