Gwendolen Guinness, Countess of Iveagh

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The Countess of Iveagh
The Countess of Iveagh in 1937.jpg
Member of Parliament
for Southend
In office
19 November 1927 – 13 November 1935
Preceded by Viscount Elveden
Succeeded by Henry Channon
Personal details
Born Gwendolen Florence Mary Onslow
(1881-07-22)22 July 1881
Died 16 February 1966(1966-02-16) (aged 84)
Nationality British
Political party Conservative
Spouse(s) Rupert Guinness, 2nd Earl of Iveagh
Children Honor Guinness (eldest daughter, wife of Henry Channon)

Gwendolen Florence Mary Guinness, Countess of Iveagh (née Lady Gwendolen Florence Mary Onslow; 22 July 1881 – 16 February 1966) was an Anglo-Irish aristocrat and Conservative politician. She was, by marriage, a member of the Guinness brewing dynasty.

Early life[edit]

She was the daughter of William Hillier Onslow, 4th Earl of Onslow (1853–1911), and Florence Coulston Onslow, née Gardner (1853–1934).

Marriage and career[edit]

She was married to the Conservative Member of Parliament (MP) for Southend, Rupert Guinness, 2nd Earl of Iveagh. In 1927, he ceased to be an MP when he succeeded to his father's earldom. The Countess of Iveagh, as Gwendolen Guinness was now known, won the Southend by-election on 19 November 1927 to replace her husband as MP. She served until her retirement at the 1935 general election.

When she retired in 1935 she was succeeded as MP by her eldest daughter Honor Guinness's husband, Henry "Chips" Channon. Another son-in-law, Alan Lennox-Boyd, was an MP (for Mid Bedfordshire 1931-60), making the first mother- and son-in-law set of MPs.

Clandon Park[edit]

In 1956 she presented her Surrey childhood home, Clandon Park, to the National Trust.


  • 1881 — 1903: Lady Gwendolen Florence Mary Onslow
  • 1903 — 1919: Lady Gwendolyn Guinness
  • 1919 — 1927: The Right Honourable The Viscountess Elveden
  • 1927 — 1966: The Right Honourable The Countess of Iveagh


External links[edit]

Parliament of the United Kingdom
Preceded by
Viscount Elveden
Member of Parliament for Southend
Succeeded by
Henry Channon