Baron of Offaly Robert De Bermingham
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- 1 Baron of Offaly Robert De Bermingham [1]
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- 2 Eve De Bermingham [1.1] d. 1226
- Baron of Offaly Gerald FitzMaurice De Windsor b. 1150 d. 15 Jan 1203
- 3 Baron of Offaly Maurice De Windsor [1.1.1] b. 1190 d. Yes, date unknown
- Juliane De Cogan
- 4 Thomas FitzMaurice De Windsor [1.1.1.1] d. 1271
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- 4 Lord Justice of Ireland Maurice FitzMaurice De Windsor [1.1.1.2] d. 1286
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- 4 Thomas FitzMaurice De Windsor [1.1.1.1]
- 3 Baron of Offaly Maurice De Windsor [1.1.1]
- 2 Eve De Bermingham [1.1]