1. ROBERT¹ DE LUMLEY of Lumley, Durham, England, United Kingdom was born between 1254 and 1300, and died between 1313 and 1410. He married LUCY DE THWENG.
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MARMADUKE2 DE LUMLEY, b. on 4 Sept. 1314[3]; d. on 23 Sept. 1365[3]; m. before 1354[3] MARGARET _____.

2. MARMADUKE² DE LUMLEY (Robert¹), son of (1) Robert¹ and Lucy (de THWENG) DE LUMLEY, was born on 4 Sept. 1314^[3], and died on 23 Sept. 1365^[3]. He married before 1354^[3], MARGARET _____.
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RALPH3 DE LUMLEY, 1ST BARON LUMLEY, b. about 1360[4]; d. on 5 JAN 1399/1400[4]; m. (AEZ-7) ELEANOR NEVILLE, b. about 1366[1], d. between 16 July 1447 and 31 Dec. 4095[4], daughter of (AEZ-6) John, 3rd Baron Neville and (AHC-5) Maud (de PERCY).

3. RALPH³ DE LUMLEY, 1ST BARON LUMLEY (Marmaduke², Robert¹), son of (2) Marmaduke² and Margaret (_____) DE LUMLEY, was born between 1328 and 1366^[4], and died on 5 JAN 1399/1400^[4]. He married (AEZ-7) ELEANOR NEVILLE, daughter of (AEZ-6) John, 3rd Baron Neville and (AHC-5) Maud (de PERCY), who was born about 1366^[1], and died between 16 July 1447 and 31 Dec. 4095^[4]. ^{[1, 5, 6]}
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KATHERINE4 LUMLEY, b. about 1400; d. about 1460; m. (KJ-1) SIR JOHN CHIDIOCK, b. in Dorset, England on 1 Nov. 1401.

4. KATHERINE⁴ LUMLEY (Ralph³, Marmaduke², Robert¹), daughter of (3) Ralph³, 1st Baron Lumley and (AEZ-7) Eleanor (NEVILLE), was born between 1369/70 and 1400/1, and died between 1415 and 1509/10. She married (KJ-1) SIR JOHN CHIDIOCK, who was born on 1 Nov. 1401 in Dorset. ^{[1, 2, 7]}
Child: See (KJ-1) Sir John CHIDIOCK