William de Beaumont, 3rd Earl of Warwick English Earl (1140–1184) Parents Roger de Beaumont, 2nd Earl of Warwick Gundred de Warenne Children Siblings Sir William de Lancaster, Lord of Kendal Waleran de Beaumont, 4th Earl of Warwick Gundred de Beaumont Avice de Lancaster Partners Matilda de Percy Margery d'Eivile