Cantuar

Cantuar (from the Latin for "Canterbury") is a title that the Archbishop of Canterbury is legally permitted, in England, to use to sign his name as a substitute for the surname.

He shares the right to use only a title in the signature with the Archbishop of York, other Anglican bishops, and Peers of the Realm. The Archbishop of York can sign as Ebor, from the Roman name for "York" {Eboracum).