Lady Augusta Vane (1796-1874) (1796–1874) Parents Lady Catherine Margaret Powlett William Vane, 1st Duke of Cleveland Children Mark Milbank Henry Milbank Mary Emily Milbank Augusta Caroline Milbank Frederick Milbank Sophia Katherine Milbank Reginald William Milbank Louisa Jane Milbank Augustus Sussex Milbank Siblings Lady Arabella Vane Lady Caroline Vane Lady Louisa Vane William Vane, 3rd Duke of Cleveland Henry Vane, 2nd Duke of Cleveland Lady Laura Vane Harry Powlett, 4th Duke of Cleveland Partners Mark Milbank