Auberville was entrusted with a surety for the king by Rosamond, widow of Phillip de Girunde, for a fine of 20 marks to enable her to marry whom she pleased. In November 1222 the king paid him to buy horses for the use of Isabella, sister of Alexander II of Scotland when coming into his district. In August 1223 his name was listed to defend the king as far as Bedford. In 1222 Robert appears among the witnesses to a charter, issued at Westminster, by William, son of Fulco, de Pamele in favour of Saint Peter's Abbey, Ghent. Assizes In 1226 Robert de Auberville and Henry de Sandwich were chosen by the king to replace justiciars in an assize in Canterbury. He sat in an assize in Rochester with justices William de Cyriton, Simon de Chelefeld and Simon de Craye in 1228, and in 1229, with Henry de Cobham, William de Dudinton and Robert de Rokeley, at Greenwich (an assize of Mort d'Ancestor) with Henry de Sandwich, and at Winchelsea with Simon de Echyngham, William de Munceiaus and William de Oym. Keeper of the Coast and Constable of Hastings From July 1225 Robert was Constable of Hastings Castle, and received regular payments for his fees and for works and operations there. In 1226 he and brother Thomas the Templar were appointed to receive money on behalf of Richard, Earl of Cornwall. He was appointed to the position of Keeper of the Coast, then the name given to the office of Lord Warden of the Cinque Ports, in 1228. He was responsible for the general security of the ports between Sandwich and Portsmouth. He and Bertram de Criol, then Constable of Dover Castle, were favoured by a writ de intendendo issued to the bailiffs and barons of the Cinque Ports in 1229: in an equivalent writ of 1230, Henry de Sandwich appears in de Auberville's place. Robert witnessed a charter of confirmation to Hubert de Burgh in 1227. At about that time both he and Bertram de Criol also witnessed a grant to Hubert by Roger de Ware, and a companion deed of quitclaim, of land in Westminster, and also Hubert's own grant of the church of St Leonard, Alderton to the Premonstratensian abbey of St Radegund at Bradsole. In 1229 he was among the principal witnesses to the foundation charter of Michelham Priory under the hand of Gilbert de Aquila.