 His widow died on 24 May 1723 in Pall Mall, London, and was buried in the Richmond vault of the Henry VII Chapel at Westminster Abbey.With his death, the senior line of the Abercorns and the Strabanes failed.With regard to the Abercorns, the succession reverted to the next of the cadet branches descending from the five sons of the 1st Earl of Abercorn as it already had done in about 1650 when George, the 3rd Earl, died unmarried in Padua.