1. JOHN¹ VIPONT was born about 1194, and died in 1241^[3]. He married (PP-14) SIBYL DE FERRERS of Derby, Derbyshire, England, United Kingdom, daughter of (PP-11) William, 4th Earl of Derby and (D-13) Agnes (of CHESTER), who was born on 25 July 1216.
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ROBERT2 DE VIPONT, LORD OF WESTMORLAND of Brougham Castle, Westmorland, England, b. about 1222; d. on 7 June 1264; m. (ZY-9) ISABEL FITZ JOHN, b. in Shere, Surrey, England about 1233, d. between 1254 and 1348, daughter of (ZY-4) John, Justiciar of Ireland and (FB-6) Isabel (le BIGOD) (DE LACY).

2. ROBERT² DE VIPONT, LORD OF WESTMORLAND (John¹) of Brougham Castle, son of (1) John¹ and (PP-14) Sibyl (de FERRERS) VIPONT, was born about 1222, and died on 7 June 1264^[5]. He married of Woodham, Essex, England, (ZY-9) ISABEL FITZ JOHN, daughter of (ZY-4) John, Justiciar of Ireland and (FB-6) Isabel (le BIGOD) (DE LACY), who was born about 1233 in Shere, and died between 1254 and 1348. ^{[2, 7]}
Sheriff of Westmorland.^[2]
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ISABEL3 DE VIPONT, b. in 1254 prob. Cumbria, England; d. in 1291; m. in 1269 prob. Cumbria (S-75) ROGER DE CLIFFORD, b. prob. Tenbury, Worcestershire, England in 1243[4], d. in Menai Straits, North Wales, Wales, United Kingdom on 6 Nov. 1282, son of (S-73) Sir Roger and Matilda (_____).

3. ISABEL³ DE VIPONT (Robert², John¹), daughter of (2) Robert², Lord of Westmorland and (ZY-9) Isabel (FITZ JOHN), was born in 1254 prob. Cumbria^[4], and died about 1291^[3]. She married prob. Cumbria, in 1269, (S-75) ROGER DE CLIFFORD^[4], son of (S-73) Sir Roger and Matilda (_____), who was born in 1243 prob. Tenbury^[4], died on 6 Nov. 1282 in Menai Straits, and was buried in Shap Abbey, Westmorland. ^{[1, 6, 3]}
Child: See (S-75) Roger de CLIFFORD