Richard de Dupedene held the land at Depedene in 1316. The timing would allow this Richard to be a grandson of the Nicholas de Depeden who paid a fine as a venison offender in 1280 and a son of the Nicholas de Depeden who held the Depeden land in 1300.
1316 "575. RlCHARD DE DUPEDENE. Writ, 23 May, 9 Edw. II. Southampton. Inq. 4 June, 9 Edw. II. Dupeden. A third part of the manor (extent given), held of the king in chief as of the honour of St. Valery at fee farm, as the charter made by Reginald de Sancto Walerico to Edmund and Osbert de Dupeden ancestors of the said Richard, and the confirmation of King Henry father of King John more fully testify, rendering 83s. 4d. at Michaelmas yearly. Nicholas his son, aged 1½, is his next heir. C. Edw. II. File 46. (26.)" [1]
"1316 June 28. Westminster. To the same [Master John Waleweyn, escheator this side Trent.]. Order to deliver to Joan, late the wife of Richard de Dupedene, as nearest [friend] of his heir Nicholas her son, a third of the manor of Dupedene, as it appears by inquisition that Richard held the said third of the king in chief as of the honour of St. Valery by the yearly service of 33s. 4d. and that he held no other lands in chief as of the crown by reason whereof the custody of his lands should pertain to the king, by which inquisition it was found that Nicholas his son is his nearest heir and is aged a year and a half." [2]
Richard may have had a brother or more distant relative named Walter. In 1323-24 a Walter de Depeden was king's customer for the town of Southampton at Lymington. "The earliest extant dispute on the petty customs with Lymington was in 17 Ed. II., when ... 'men' of the town of Lymington were attached to answer to the king in a plea of trespass, in taking tolls at Lymington, which belonged to the farm of Southampton ... and assaulting Walter de Depeden, the king's customer, who was the agent for the town of Southampton at Lymington. ... Damages were given against Lymington to the amount of £200, while it was found that Walter de Depeden had not been beaten." [3]
[1] Calendar of Inquisitions Post Mortem, Vol. 5, Edward II (London: HMSO, 1908), 369, item 575, [GoogleBooks], [HathiTrust], [InternetArchive].
[2] H. C. Maxwell Lyte, ed., Calendar of the Close Rolls, Edward II, Vol. II, 1313-1318 (London: HMSO, 1893), 295, [GoogleBooks], [InternetArchive], [HathiTrust].
[3] J. Silvester Davies, A History of Southampton (London: Hamilton, Adams & Co., 1883), 226-227, [InternetArchive].