Petre was born in 1716. She was descended from
Moll Davis and
Charles II via their daughter
Lady Mary Tudor. She was the only child of Anna Maria (born Webb) and
James Radclyffe, 3rd Earl of Derwentwater to survive her childhood. Her
Jacobite father had been implicated in the
1715 rising and he had been beheaded in 1716. Her mother had embroidered a sheet with human hair to commemorate her husband and Anna's father. On 2 May 1732 she married
Robert James Petre, 8th Baron Petre. He was known for his interest in botany. He planted 40,000 American trees at their family seat The couple had four children and she ensured that they respected her executed father. She had a chest made from mahogonay to contain his clothing and the four of them were encouraged to venerate this inheritance. She was a widow with four children, her only son inherited the estate and title and she was his guardian. == References ==