Robin Hugh Warrender (and Gillian née Rossiter, only daughter of Leonard Lewis Rossiter by his wife Elsie Oppenheimer, daughter of Sir Bernard Oppenheimer, 1st Baronet), son of Victor Warrender, 1st Baron Bruntisfield.

Brought up at Fulbrook, Oxfordshire, she started her career in publishing, before working in the voluntary sector, primarily with Citizens Advice.

Alastair Campbell, who succeeded as the 4th Baron Colgrain upon the death of his father in 2008.

Thomas Colin David Campbell (born 9 February 1984), married 2016 Jessica Clare Cator (born 1989), daughter of Charles Francis Cator, of Luckington, Wiltshire, whose mother was the Hon.

Nicholas Robin Campbell (born 12 December 1986), married 2022 Kelly Frye (born 1984), only daughter of Michael Joseph Frye, of Houston, Texas, United States.