William Edgcumbe, 4th Earl of Mount Edgcumbe British politician (1833–1917) (1833–1917) Parents Caroline Augusta Edgcumbe, Countess of Mount Edgcumbe Ernest Edgcumbe, 3rd Earl of Mount Edgcumbe Children Edith Edgcumbe Piers Edgcumbe, 5th Earl of Mount Edgcumbe Victoria Frederica Caroline Edgcumbe Alberta Edgcumbe Siblings Charles Ernest Edgcumbe Ernestine Edgcumbe Partners Caroline Cecilia Edgcumbe Lady Katherine Hamilton