The Hon. Orlando Montagu is the younger son of the 11th Earl of
Sandwich and the Countess of Sandwich, and Lady Honor is the eldest
daughter of the Marquess of Douro, by his wife the former Antonia
Brigid Elizabeth Luise von Preussen, yr daughter of the late HRH Prince
Friedrich Georg Wilhelm Christoph of Prussia, and a descendant of
Wilhlem II, German Emperor, and Queen Victoria &c.
Lady Honor's paternal grandfather is the 8th Duke of Wellington, KG.
Source: Daily Telegraph 6 December, 2005
***