Viscount Rialton is in Viscountcies of England Alphabetically.
In December 1706 Sidney Godolphin 1st Earl Godolphin [aged 61] was created 1st Earl Godolphin, 1st Viscount Rialton.
On 15th September 1712 Sidney Godolphin 1st Earl Godolphin [aged 67] died. His son Francis [aged 34] succeeded 2nd Earl Godolphin, 2nd Viscount Rialton, 2nd Baron Godolphin of Rialton in Cornwall. Henrietta Churchill 2nd Duchess of Marlborough [aged 31] by marriage Countess Godolphin.
On 17th January 1766 Francis Godolphin 2nd Earl Godolphin [aged 87] died. Earl Godolphin, Viscount Rialton, Baron Godolphin of Rialton in Cornwall extinct. His first cousin Francis [aged 59] succeeded 2nd Baron Godolphin of Helston in Cornwall.