William De Mowbray, 6th Baron of Thirsk
Abt 1173 - Bef 1224 (< 51 years)(
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- 1 William De Mowbray, 6th Baron of Thirsk [1] b. Abt 1173 d. Bef 25 Mar 1224
- Avice Aubigny b. Abt 1170 d. Mar 1224
- 2 Roger De Mowbray [1.1] b. Abt 1200 d. Yes, date unknown
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- 3 Roger De Mowbray [1.1.1] b. 1221 d. 1266
- Maud De Beauchamp b. Abt 1235 d. Yes, date unknown
- 4 Roger De Mowbray, 1st Baron Mowbray [1.1.1.1] b. Abt 1253 d. 21 Nov 1297
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- 4 Roger De Mowbray, 1st Baron Mowbray [1.1.1.1]
- 3 Roger De Mowbray [1.1.1]
- 2 Roger De Mowbray [1.1]