List of Famous people with last name Blessington

Marguerite Gardiner, Countess of Blessington, was an Irish novelist, journalist, and literary hostess. She became acquainted with Lord Byron in Genoa and wrote a book about her conversations with him.

Charles John Gardiner, 1st Earl of Blessington was an Irish earl best known for his marriage to Margaret Farmer, née Power, whom he married at St Mary's, Bryanston Square, London, on 16 February 1818. He was elected a representative peer in 1809, created Earl of Blessington in 1816, and inherited the title of Viscount Mountjoy in 1798. He was present at the trial of Queen Caroline.

William Stewart, 1st Earl of Blessington was an Anglo-Irish peer and member of the House of Lords, styled The Honourable William Stewart until 1728 and known as The Viscount Mountjoy from 1728 to 1745.