Father: Duke Henry Bentinck I of Portland Born: March 17, 1681 Married: June 9, 1704 Died: July 4, 1726 in Jamaica
Mother: Lady Elizabeth Noel of Gainsborough Born: Abt 1685 Died: March 19, 1736
Children: 1. Duke William Bentinck II of Portland 2. Lady Anne Bentinck of Portland 3. Lady Isabel Bentinck of Portland 4. Lord George Bentinck of Portland (b.12/27/1715) 5. Lady Amelia Bentinck of Portland