Dorothy Devereux was born 1564 to Walter Devereux, 1st Earl of Essex (1539-1576) and Lettice Knollys (1543-1634) and died 3 August 1619 of unspecified causes. She married Thomas Perrot (1553-1594) . She married Henry Percy, 9th Earl of Northumberland (1564-1632) 1594 . Charlemagne (747-814)/s, Hugh Capet (c940-996)/s.
|Offspring of Henry Percy, 9th Earl of Northumberland and Dorothy Devereux (1564-1619)|
|Dorothy Percy (1598-1659)||20 August 1598||20 August 1659||Robert Sidney, 2nd Earl of Leicester (1595-1677)|
|Lucy Percy (c1600-1660)|
|Algernon Percy, 10th Earl of Northumberland (1602-1668)||13 October 1602||13 October 1668||Anne Cecil (1612-1637) Anne Cecil (1612-1637) Elizabeth Howard (bef1629-1705)|
|Henry Percy (1604-1659)|