Diana Denyse Hay, 23rd Countess of Erroll (5 January 1926 – 16 May 1978) was a British noblewoman.

[1] Diana was the only child of Josslyn, Earl of Errol and his first wife Lady Idina Sackville.

The bungalow was sited alongside the high altitude farms which other white Kenyans were establishing at the time.

When her mother divorced her father in 1930, she was taken home to England to be raised firstly by her uncle The Earl De La Warr and then by her aunt, Lady Avice Sackville, in Wiltshire.

[1] Together, they were the parents of three children:[3] Moncreiffe and Lady Erroll were divorced in 1964 and on 27 November that year, she married Maj. Raymond Carnegie (b.