Allhallows Barking, received their submission, and conducted the mayor and forty of the chief men of the city to the king at Windsor (Liber de Antiquis Legibus, pp. 77, 78). After marching with the king to Northampton in April 1266 [see under Henry III] he was again sent to London with an armed force, and overawed the discontented party in the city. He assisted in the pacification of the country, reduced Winchelsea and Sandwich to obedience, received the custody of the castles of Dover, Rochester, and Nottingham, and of the Tower of London, and kept order in Huntingdonshire, Essex, and the weald of Kent. The king gave him large rewards, including thirteen manors held by William FitzAucher, one of the baronial party, and the house of Peter de Montfort in Westminster. He was sheriff of Kent and warden of the forests beyond the Trent. In 1265 he received the wardship and marriage of Idonea, younger daughter and coheiress of Robert de Vipont, baron of Westmoreland, and in 1268, by exchange with the king, the manor and castle of Leeds, Kent. In 1267 he was sent to the Counts of St. Pol and Boulogne to obtain help for the king against Gilbert de Clare, earl of Gloucester [q. v.] (Royal Letters, ii. 335; Gervase, ii. 246). He took the cross, went with Edward to Paris in 1269, joined in the arrangements there made for the projected crusade, and evidently intended to accompany Edward upon it. It is certain that he did not go (see on other side Archæologia Cantiana, v. 142), for in December 1270, four months after Edward's departure, he was upholding the official of Christ Church, Canterbury, against the prior of Dover (Gervase, ii. 256). He died in 1271, at some date prior to 7 Nov. It has been suggested that a niche in Leybourne Church contained his heart (Archæologia Cantiana, v. 135 sqq.) To Elham Church he left an endowment for a light, which was maintained until the suppression of chantries (ib. x. 49); he gave some land in Kent to Bermondsey Priory, Surrey, and a small endowment to Cumbwell Priory, Kent (ib. v. 219). His arms were azure, six lioncels argent. He was twice married; the name of his first wife has not been discovered (ib. v. 154, 193; Dugdale, confusing him with his father, makes Eleanor de Thurnham his wife; and Hasted, confusing him with his younger son, gives him Idonea de Vipont, who was only about twelve at the time of his death); his second wife was Eleanor, daughter of William de Ferrers, earl of Derby, who had previously married, first, William de Vaux, and next Roger de Quincy, earl of Winchester; she survived him. He left two sons, William, who succeeded him, and Roger, who married Idonea de Vipont, his father's ward. Idonea brought her husband great wealth, and appears to have held, jointly with her elder sister, Isabella, wife of Roger de Clifford, the barony and sheriffdom of Westmoreland (Fœdera, i. 753, 804).
William de Leybourne (d. 1309), baron, Roger's elder son by his first wife (not by his second, because William was of age at his father's death, and Roger could not have married his second wife before 1264, the date of the Earl of Winchester's death), served in Wales in 1277 and 1282 (Fœdera, i. 538, 608), was constable of Pevensey, and in 1294 was appointed captain of the fleet gathered at Portsmouth for the recovery of Gascony (ib. p. 809; Trivet, p. 332). He was described in 1297 by the title of ‘Admiral of the Sea of the King of England’ (Fœdera, i. 861; Burrows, Cinque Ports, p. 129). He received a summons to parliament in 1299 and in later years, and in 1301 joined in the letter from the barons to the pope. In 1299 he served in Scotland at the head of five knights and fifteen esquires, and in 1300 was present at the siege of Caerlaverock, being described in the Caerlaverock roll (La Siège de Carlaverock, ed. Nicolas) as ‘a valiant man without but or if.’ He served again in Scotland in 1304, and died in 1309. He married Juliana, daughter and heiress of Henry de Sandwich, by whom he had two sons, Thomas and Henry. Thomas was enfeoffed of Leybourne by his father, and died in 1307, leaving by his wife Alice (sister and heiress of Robert de Toeni, who married for her second husband Guy de Beauchamp, earl of Warwick [q. v.], and for her third William la Zouche) one daughter, Juliana, three years old at her father's death, who in 1309 became sole heiress of her grandfather William. She was a great lady, for many inheritances had devolved upon her. She married, first, John de Hastings, third baron Hastings (see under Hastings, John, second Baron Hastings, where Juliana's other marriages are noted; Archæologia Cantiana, i. 1 sqq., v. 189–91, 193).
