sentences:  Believed (incorrectly) by many to be the illegitimate daughter of an Irish gentleman by the name of Domville, Eugenia was described by one observer as "plain almost to ugliness" although possessing "the most careful education and all the choicest accomplishments of her sex".Their two sons, Charles and Philip, were born in London in 1761 and 1763 respectively, and it was not until 25 September 1767 that he and Eugenia were married in Dresden.Stanhope went to great lengths to keep the relationship a secret from his father, to the extent of engaging a separate habitation for his wife and children.