As the only son of one of the leading, and oldest, noble families in England, a good deal of attention and expectation was directed towards the young Lord Percy.
Parliament was under a long adjournment when Lord Percy inherited the earldom of Northumberland in October 1668, and it did not meet again until October 1669. By that time the new earl of Northumberland was in France, travelling there with his family and ‘a very great train’.
An inventory of his personal goods in his principal residences – Northumberland House, Syon House and Petworth House – made at the time of his death estimated that his possessions were worth £41,987.
His heir Henry Percy, styled Lord Percy, died only a few months after these arrangements were made and within only a few short months after Northumberland’s own death his only surviving child was his daughter Elizabeth, then about three years old. The earldom of Northumberland became extinct at Northumberland’s death without a male heir, but Elizabeth remained suo jure Baroness Percy.
