Lady Lucy Sydney (born 1630) (1630–1685) Parents Dorothy Sidney, Countess of Leicester Robert Sidney, 2nd Earl of Leicester Children Henry Pelham Elizabeth Pelham Thomas Pelham, 1st Baron Pelham Lucy Pelham Siblings Henry Sydney, 1st Earl of Romney Dorothy Spencer, Countess of Sunderland Algernon Sidney Philip Sidney, 3rd Earl of Leicester Robert Sydney Lady Isabella Sydney Partners Sir John Pelham, 3rd Baronet