In 1648 John Tracy 1st Viscount Tracy (age 87) died. His son John Tracy 2nd Viscount Tracy (age 55) succeeded 2nd Viscount Tracy of Rathcoole in Dublin.

In 1662 John Tracy 2nd Viscount Tracy (age 69) died. His son John Tracy 3rd Viscount Tracy (age 45) succeeded 3rd Viscount Tracy of Rathcoole in Dublin. Elizabeth Leigh Viscountess Tracy by marriage Viscountess Tracy of Rathcoole in Dublin.

On 08 Mar 1687 John Tracy 3rd Viscount Tracy (age 70) died. His son William Tracy 4th Viscount Tracy (age 30) succeeded 4th Viscount Tracy of Rathcoole in Dublin. Jane Leigh Viscountess Tracy (age 22) by marriage Viscountess Tracy of Rathcoole in Dublin.

On 18 Apr 1712 William Tracy 4th Viscount Tracy (age 55) died. He was buried at Toddington, Gloucestershire. His son Charles Tracy 5th Viscount Tracy (age 21) succeeded 5th Viscount Tracy of Rathcoole in Dublin.