- Born on February 15, 1802
- Deceased on June 16, 1866, at the age of 64 years
Parents
- James St Clair-Erskine (1762 - 1837), Earl of Rosslyn
- Henrietta Elizabeth Bouverie (1771 - 1810)
Family
- Married on October 10, 1826, with Frances Wemyss ( - 1858), issuing
- Robert (1833 - 1890)