William Edgcumbe, Viscount Valletort British politician (1794–1818) (1794–1818) Parents Richard Edgcumbe, 2nd Earl of Mount Edgcumbe Sophia Edgcumbe, Countess of Mount Edgcumbe Children Siblings Lady Caroline Edgcumbe Ernest Edgcumbe, 3rd Earl of Mount Edgcumbe George Edgcumbe Emma Edgcumbe