Elizabeth Jennings Beckwith, mother of Sir Marmaduke Beckwith
Elizabeth Jennings was the sister of Edmund Jennings, who was Attorney General in 1684,Secretary of State, 1701, President of the Council and acting-governor of Virginia in 1710. A Peter Jennings was her grandfather.
The name is often spelled "Jenings".
Folks interested in the life of Jim Beckwourth (James P. Beckwourth)...
Elizabeth Jennings Beckwith would be his, um, let's see...
Sir Marmaduke, who begat
Sir Jonathan, who begat
Sir Jennings, who begat
James Pierson Beckwith, aka Jim Beckwourth.
Elizabeth is Jim's great-great-grandmother.
Plantagenet Ancestry: A Study in Colonial and Medieval Families
Descents From Edward III For Sir Marmaduke Beckwith, 3rd Baronet