Earl of Roscommon

For Baron Dillon of the Holy Roman Empire, see Dillon Baronets

Earl of Roscommon was a title in the Peerage of Ireland created on 5 August 1622 for James Dillon, 1st Baron Dillon. He had been created Baron Dillon on 24 January 1619. The titles became extinct on the death of the 12th Earl on 15 May 1850.

Barons Dillon (1619)

• James Dillon, 1st Baron Dillon (died 1642) (created Earl of Roscommon in 1622)

Earls of Roscommon (1622)

• James Dillon, 1st Earl of Roscommon (died March 1642)
• Robert Dillon, 2nd Earl of Roscommon (died 27 August 1642)
• James Dillon, 3rd Earl of Roscommon (c.1605–1649)
• Wentworth Dillon, 4th Earl of Roscommon (c.1630–1685)
• Carey Dillon, 5th Earl of Roscommon (1627–1689)
• Robert Dillon, 6th Earl of Roscommon (died 1715)
• Robert Dillon, 7th Earl of Roscommon (died 1721)
• James Dillon, 8th Earl of Roscommon (1702–1746)
• Robert Dillon, 9th Earl of Roscommon (died 1770)
• John Dillon, 10th Earl of Roscommon (died 1782)
• Patrick Dillon, 11th Earl of Roscommon (1769–1816)
• Michael James Robert Dillon, 12th Earl of Roscommon (1798–1850)

References

• Leigh Rayment's Peerage Page