Earl of Milltown

The title Earl of Milltown, in the County of Dublin, was created in the Peerage of Ireland in 1763 for the 1st Viscount Russborough, who had been created Baron Russborough, in the County of Wicklow, in 1756 and Viscount Russborough, of Russellstown in the County of Wicklow, in 1760, both also the Peerage of Ireland. All three titles became dormant on the death of the 7th Earl in 1891.

The family seat was commissioned by the 1st Earl and it was the famous Russborough House in Ireland

Barons Russborough (1756–1891)

*Joseph Leeson, 1st Baron Russborough (1722–1783) (created Viscount Russborough in 1760)

Viscounts Russborough (1760–1891)

*Joseph Leeson, 1st Viscount Russbrough (1722–1783) (created Earl of Milltown in 1763)

Earls of Milltown (1763–1891)

*Joseph Leeson, 1st Earl of Milltown (1722–1783)
*Joseph Leeson, 2nd Earl of Milltown (1730–1801)
*Brice Leeson, 3rd Earl of Milltown (1735–1807)
*Joseph Leeson, 4th Earl of Milltown (1799–1866)
*Joseph Henry Leeson, 5th Earl of Milltown (1829–1871)
*Edward Nugent Leeson, 6th Earl of Milltown (1835–1890) (elected a representative peer in 1881)
*Henry Leeson, 7th Earl of Milltown (1837–1891) (dormant on his death)