The case of James Percy, claymant to the Earldom of Northumberland with an impartial account of the proceedings he hath made in the several courts of justice in order to the proving and obtaining his right and title to the said Earldom : humbly addressed to the Kings Most Excellent Majesty, and the Right Honourable the Lords spiritual and temporal in Parliamnet [sic] assembled.
Percy, James, 1619-1690?, Grey of Ruthin, Charles Longueville, Baron, 1618-1643.
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HENRY PERCY, Fifth Earl of Northumberland, Married; and had Issue Three Sons, viz.
I. Henry Percy, 6th. Earl of Northumber∣land, Married, and dyed without Issue.
II. Thomas Percy, Married and had Issue; But when Josceline Percy the 11th. Earl dyed; the Heirs Males of this Line were Extinct also.
III. Sir Ingelram Percy, Married and had Issue 2 Sons, (viz.) Henry, and Robert.
Henry Percy, Eldest Son, Married, and had Issue 3 Sons (viz.) James, William, and Henry; But the 2 elder Bro∣thers died without Issue-Male.
Henry Percy, (Third Son,) Married, and had Issue 3 Sons (viz.) Henry, James, and Henry: But the two Henryes dyed young.
James Percy, (the now Claymant) Married, and hath 3 Sons, (viz.) Anthony, Henry and John.
Anthony Percy, is Married, and hath Issue, Henry Percy, Grandson of James Percy the now Claymant.

The following Account makes out this Pedigree fully, from Henry Percy 5th. Earl of Northumberland, to the Claymant James Percy.