Robert de Clifford, 1st Baron de Clifford

Robert de Clifford, 1st Baron de Clifford (c. 1274–1314), of Appleby Castle, Westmorland, feudal baron of Appleby and feudal baron of Skipton in Yorkshire, was an English soldier who became 1st Lord Warden of the Marches, responsible for defending the English border with Scotland.

He was born in Clifford Castle,Herefordshire, a son of Roger II de Clifford (d.1282) (a grandson of Walter II de Clifford (d.1221), feudal baron of Clifford) by his wife Isabella de Vipont (d.1291), one of the two daughters and co-heiresses of Robert II de Vipont (d.1264), feudal baron of Appleby, grandson of Robert I de Vieuxpont (d.1227/8). Thenceforth the Clifford family quartered the arms of Vipont: Gules, six annulets or.

The ancient Norman family which later took the name de Clifford arrived in England during the Norman Conquest of 1066, and became feudal barons of Clifford, first seated in England at Clifford Castle in Herefordshire.

As his father had predeceased his own father, in 1286 Robert inherited the estates of his grandfather, Roger I de Clifford (d.1286). Following the death of his mother Isabella de Vipont in 1291 he inherited a one-half moiety of the extensive Vipont feudal baron of Appleby in Westmorland. In 1308 he was granted the remaining moiety by his childless aunt Idonea de Vipont (d.1333) and thus became one of the most powerful barons in England.

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