1. | William (4th Earl of Inchiquin) O'brien was born in 1694; died on 18 Jul 1777. William married Anne (Countess of Orkney) Hamilton on 29 Mar 1720. Anne (daughter of George (1st Earl of Orkney) Hamilton and Elizabeth Villiers) was born in 1694; died on 6 Dec 1756. [Group Sheet] [Family Chart]
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2. | Mary (Countess of Orkney) O'brien ![]() |
3. | William Lord O'brien ![]() |
4. | George Lord O'brien ![]() |
5. | Augustus O'brien ![]() |
6. | Murrough (4th Viscount Kirkwall) O'brien ![]() |