As the product of a morganatic marriage, and without succession rights to the throne, Francis was not acceptable as a husband for princesses in most of the European royal houses. Further, Francis had little income in comparison with other European princes. He thus married into a richer family, by marrying his father's third cousin (in descent from King George II of Great Britain) Princess Mary Adelaide of Cambridge, the younger daughter of Prince Adolphus, Duke of Cambridge, and a granddaughter of George III.