After the 1st Earl of Bath, succeeding generations of Granvilles seem to have had a habit of dying just as they came to the point of power and influence, for John’s eldest son, and heir, Charles Granville (-1701) shot himself shortly after his father died, an incident alleged by some to have been a suicide (precipitated by the thought of inheriting the family debts). His only son William Granville (-1711) then died of smallpox, unmarried, and just after being appointed Lord Lieutenant of Cornwall. Though this was not before his cousin Bernard Grenville could write advising him against making the New Hall (i.e. New Place, Bideford) his residence. From the letter it may be inferred that William’s grandfather had wanted to demolish New Place had it ever come into his possession. So, as John inherited the family’s Bideford properties, and New Place had presumably now passed down to William, was it spared because it had been leased out?
With the death of William, the failure of the male line saw a portfolio of Granville owned East-the-Water properties come to the Countess Granville, Grace Carteret, a daughter of the 1st Earl of Bath.