Biography
Josceline Percy, 11th Earl of Northumberland, was born 4 July 1644 to Algernon Percy, 10th Earl of Northumberland (1602-1668) and Elizabeth Howard (bef1629-1705) and died 21 May 1670 of unspecified causes. He married Elizabeth Wriothesley (1646-1690) 23 December 1662 .
Children
| Name | Birth | Death | Joined with |
| Elizabeth Percy (1667-1722) | 26 January 1667 | 23 November 1722 | Henry Cavendish (1659-1680) Thomas Thynne (1648-1682) Charles Seymour, 6th Duke of Somerset (1662-1748) |
| Henry Percy (1668-1669) | |||
Footnotes (including sources)
| ‡ General |
