Frederick Thomas Pelham British Royal Navy officer (1808-1861) (1808–1861) Parents Mary Pelham, Countess of Chichester Thomas Pelham, 2nd Earl of Chichester Children Beatrice Pelham Frederick Pelham Constance Pelham Siblings Lady Amelia Pelham Henry Pelham, 3rd Earl of Chichester John Pelham Lady Catherine Pelham Lady Lucy Pelham Partners Ellen Mitchell