Frances Mostyn (died 1859) (d. 1859) Parents Sir Edward Mostyn, 7th Baronet Frances Blundell Children Siblings Roger Joseph Mostyn Edward Mostyn Agnes Mostyn William Mostyn Sir Pyers Mostyn, 8th Baronet Llewelyn Mostyn Winifred Mostyn Catherine Mostyn Teresa Mostyn Barbara Mostyn Mary Pauline Mostyn Partners Edward Slaughter