The Eustace Diamonds by Anthony Trollope

Frank Greystock stayed the Sunday in London and went down to Bobsborough on the Monday. His father and mother and sister all knew of his engagement to Lucy, and they had heard also that Lady Eustace was to become Lady Fawn. Of the necklace they had hitherto heard very little, and of the quarrel between the two lovers they had heard nothing. There had been many misgivings at the deanery, and some regrets, about these marriages. Mrs. Greystock, Frank's mother, was, as we are so wont to say of many women, the best woman in the world. She was unselfish, affectionate, charitable, and thoroughly feminine. But she did think that her son Frank, with all his advantages -- good looks, cleverness, general popularity, and seat in Parliament -- might just as well marry an heiress as a little girl without twopence in the world. As for herself, who had been born a Jackson, she could do with very little; but the Greystocks were all people who wanted money.

For them there was never more than ninepence in a shilling, if so much. They were a race who could not pay their way with moderate incomes. Even the dear dean, who really had a conscience about money, and who hardly ever left Bobsborough, could not be kept quite clear of debt, let her do what she would. As for the admiral, the dean's elder brother, he had been notorious for insolvency; and Frank was a Greystock all over. He was the very man to whom money with a wife was almost a necessity of existence.