Question: How long was Margaret Stanley, Countess of Derby's father's family seated at Skipton Castle?
Sentence (from "Margaret Clifford, Countess of Derby"): Margaret Stanley, Countess of Derby (née Lady Margaret Clifford; 1540 – 28 September 1596) was the only surviving daughter of Henry Clifford, 2nd Earl of Cumberland and Lady Eleanor Brandon.
Relevant evidence: Yes