All of the these lines are ancestral lines of Cordelia Pickering, but to better understand the relationships I have identified four distinct ancestral lines as designated below.

The person is an ancestor of Cordelia Pickering, but is not a member of the other three lines below.
The person is an ancestor of Katherine Talbot, but is not a member of the two lines below.
The person is an ancestor of Anna Savage, but is not a member of the line below.
The person is an ancestor of Elizabeth of Ruddlan