Margaret Alison of Mar, 31st Countess of Mar, is a Scottish hereditary peer and politician. She was a crossbench member of the House of Lords from 1975 to 2020 and was one of 92 hereditary peers elected to remain in the Lords in 1999. Wikipedia
Born: 1940 (age 83 years)
Grandchildren: Frances Alexandra of Mar and Isabel Alice of Mar
Children: Susan of Mar, Mistress of Mar
Parents: James of Mar, 30th Earl of Mar
Partner: John Henry Jenkin (1982–)
Great-grandparents: John Brown Grant, James Horsburgh Lane, and Alice Young
Grandparents: Jessie Helen Grant and Charles Macdonald Lane