Frances Clack (died 1782) (1740–1782) Parents Thomas Clack Children Amelia Courtenay Sophia Courtenay Anne Courtenay Elizabeth Courtenay Louisa Augusta Courtenay Harriet Courtenay Matilda Jane Courtenay Lucy Courtenay Isabella Courtenay Charlotte Courtenay William Courtenay, 9th Earl of Devon Eleanor Courtenay Caroline Eustatia Courtenay Frances Courtenay Siblings Elizabeth Clack Ann Clack Sarah Clack Thomas Clack Partners William Courtenay, 2nd Viscount Courtenay