Mary O'Brien, 3rd Countess of Orkney Irish
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Mary O'Brien, 3rd Countess of Orkney is a member of the following lists: People from County Cork, Deaf people and Daughters of British earls.
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Details
| First Name |
Mary
|
| Middle Name |
O'Brien, 3rd Countess Of
|
| Last Name |
Orkney
|
| Birthday |
30th November, 1720
|
| Died |
1791
|
| Nationality |
Irish
|
Mary O'Brien, 3rd Countess of Orkney (c. 1721 – 1790) was the eldest daughter of Anne O'Brien, 2nd Countess of Orkney, and William O'Brien, 4th Earl of Inchiquin, and Countess of Orkney in her own right.
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