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; d. on 23 Sept. 1365; m. before 1354 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, MARGARET _____^[3]. ^[3]
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RALPH3 DE LUMLEY, 1ST BARON LUMLEY, b. about 1360/1; d. on 5 Jan. 1399/1400; m. (AEB-7) ELEANOR NEVILLE, b. about 1366[1], d. after 16 July 1447[4], daughter of (AEB-6) John, 3rd Baron Neville and (AGC-5) Maud (de PERCY).

3. RALPH³ DE LUMLEY, 1ST BARON LUMLEY (Marmaduke², Robert¹), son of (2) Marmaduke² and Margaret (_____) DE LUMLEY, was born about 1360/1^[4], and died on 5 Jan. 1399/1400^[4]. He married (AEB-7) ELEANOR NEVILLE, daughter of (AEB-6) John, 3rd Baron Neville and (AGC-5) Maud (de PERCY), who was born about 1366^[1], and died after 16 July 1447^[4]. ^{[6, 5, 1]}
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KATHERINE4 LUMLEY, m. (KE-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 (AEB-7) Eleanor (NEVILLE), was born between 1370 and 1401, and died between 1413 and 1510. She married (KE-1) SIR JOHN CHIDIOCK, who was born on 1 Nov. 1401 in Dorset. ^{[2, 7, 1]}
Child: See (KE-1) Sir John CHIDIOCK