Mrs Lavery, Edith’s mother, considered herself a bird of quite different feather to her spouse, fond as she was of him. Her own father had been an Indian army colonel but the salient detail was that his mother had been the great-niece of a banking baronet. Although kindly in many ways, Mrs Lavery was passionately snobbish to a degree verging on insanity and so her frail connection to this, the very lowest hereditary rank filled her with the warming sense of belonging to that inner circle of rank and privilege where her poor husband must ever be a stranger. Mr Lavery did not, for this reason, resent his wife. Not in the least. On the contrary he was proud of her. She was, after all, a tall, good-looking woman who knew how to dress and if anything he was rather entertained by the idea that the phrase 'noblesse oblige' (one of Mrs Lavery’s favourites) could have the slightest application to his household.
Julian Fellowes, Snobs (12-13)