Peter Constable Constable-Maxwell (1807-1851) (1807–1851) Parents Marmaduke William Constable-Maxwell Theresa Apollonia Wakeman Children Siblings Theresa Constable-Maxwell Mary Constable-Maxwell Joseph Constable-Maxwell William Constable-Maxwell, 10th Lord Herries Henry Constable-Maxwell-Stuart, 16th of Traquair Marmaduke Constable-Maxwell of Terregles