Katharine Macmillan, Viscountess Macmillan of Ovenden

Katharine Macmillan
Born	Katharine Ormsby-Gore 4 January 1921 (1921-01-04)
Children	Alexander Macmillan, 2nd Earl of Stockton Joshua Macmillan Julian Macmillan Rachel Macmillan David Macmillan
Parents	William Ormsby-Gore, 4th Baron Harlech Beatrice Gascoyne-Cecil

Katharine Macmillan, Viscountess Macmillan of Ovenden, DBE (born 4 January 1921 as The Honourable Katharine Margaret Alice Ormsby-Gore) is the daughter of the 4th Baron Harlech and granddaughter of the 4th Marquess of Salisbury.

On 22 August 1942, she married Conservative politician Maurice Macmillan, making her the daughter-in-law of fellow Conservative politician Harold Macmillan, who would serve as prime minister from 1957 to 1963.

They had five children together:

• 1) Alexander Daniel Alan Macmillan, 2nd Earl of Stockton (born 1943)
• 2) The Honourable Joshua Edward Andrew Macmillan (1945–1965)
• 3) The Honourable Adam Julian Robert Macmillan (born 1948)
• 4) The Honourable Rachel Mary Georgia Macmillan (1955–1987)
• 5) The Honourable David Maurice Benjamin Macmillan (born 1957)

She was Vice-Chairman of the Conservative Party in 1968 and was created a Dame Commander of the Order of the British Empire (DBE) in 1974. She became Viscountess Macmillan of Ovenden in February 1984 when her father-in-law, former British prime minister Harold Macmillan, accepted a peerage and was created Earl of Stockton. Her husband died the following month, so never inherited the earldom from his father.