Viscount Longueville is in Viscountcies of England Alphabetically.
On 21st April 1690 Henry Yelverton 1st Viscount Longueville was created 1st Viscount Longueville. Barbara Talbot Viscountess Longueville [aged 25] by marriage Viscountess Longueville.
In 1704 Henry Yelverton 1st Viscount Longueville died. His son Talbot [aged 13] succeeded 2nd Viscount Longueville, 16th Baron Grey of Ruthyn, 5th Baronet Yelverton of Easton Maudit in Northamptonshire. Lucy Pelham Countess Sussex by marriage Viscountess Longueville.
On 27th October 1731 Talbot Yelverton 1st Earl of Sussex [aged 41] died. His son George [aged 4] succeeded 2nd Earl of Sussex, 3rd Viscount Longueville, 17th Baron Grey of Ruthyn, 6th Baronet Yelverton of Easton Maudit in Northamptonshire.
On 8th January 1758 George Augustus Yelverton 2nd Earl of Sussex [aged 30] died. His brother Henry [aged 29] succeeded 3rd Earl of Sussex, 4th Viscount Longueville, 18th Baron Grey of Ruthyn, 7th Baronet Yelverton of Easton Maudit in Northamptonshire.
On 22nd April 1799 Henry Yelverton 3rd Earl of Sussex [aged 70] died without suviving male issue. Earl of Sussex and Viscount Longueville and Baronet Yelverton of Easton Maudit in Northamptonshire extinct. His grandson Henry [aged 18] succeeded 19th Baron Grey of Ruthyn. Note. Many sources describe his death as 1779 which would be inconsistent with Henry Gould Yelverton 19th Baron Grey Ruthyn succeeding.