On 31 Dec 1763 Nicholas Loftus 1st Viscount Loftus (age 76) died. His son Nicholas Hume-Loftus 1st Earl of Ely (age 55) succeeded 2nd Viscount Loftus of Ely, 2nd Baron Loftus of Loftus Hall in Wexford.

On 31 Oct 1766 Nicholas Hume-Loftus 1st Earl of Ely (age 58) died. His son Nicholas Hume-Loftus 2nd Earl of Ely (age 28) succeeded 2nd Earl of Ely in Wicklow, 3rd Viscount Loftus of Ely, 3rd Baron Loftus of Loftus Hall in Wexford.

On 12 Nov 1769 Nicholas Hume-Loftus 2nd Earl of Ely (age 31) died. Earl of Ely in Wicklow extinct. His uncle Henry Loftus 1st Earl of Ely (age 59) succeeded 4th Viscount Loftus of Ely, 4th Baron Loftus of Loftus Hall in Wexford. Frances Monroe Countess of Ely by marriage Viscountess Loftus of Ely.

On 08 May 1783 Henry Loftus 1st Earl of Ely (age 73) died without issue. Earl of Ely in Wicklow, Viscount Loftus of Ely and Baron Loftus of Loftus Hall in Wexford extinct. His estates passed to his nephew Charles Tottenham aka Loftus 1st Marquess Ely (age 45), the son of his sister Elizabeth Loftus, who adopted the surname Loftus.