How would you explain the core financial and familial structure of the Cavendish household, particularly focusing on the implications of Mr. Cavendish's will and Mrs. Cavendish's remarriage, to someone who has not read this excerpt?

From the book

, had been a handsome woman of middle-age as I remembered her. She certainly could not be a day less than seventy now. I recalled her as an energetic, autocratic personality, somewhat inclined to charitable and social notoriety, with a fondness for opening bazaars and playing the Lady Bountiful. She was a most generous woman, and possessed a considerable fortune of her own. Their country-place, Styles Court, had been purchased by Mr. Cavendish early in their married life. He had been completely under his wife’s ascendancy, so much so that, on dying, he left the place to her for…

hint of something foreign—different—that there has always been about you.” “My mother was very beautiful, I believe. I don’t know, because I never saw her. She died when I was quite a little child. I believe there was some tragedy connected with her death—she took an overdose of some sleeping draught by mistake. However that may be, my father was broken-hearted. Shortly afterwards, he went into the Consular Service. Everywhere he went, I went with him. When I was twenty-three, I had been nearly all over the world. It was a splendid life—I loved it.” There was a smile on her face,…

does not object——” “Not at all,” interpolated John. “I do not see any reason why I should not answer your question. By her last will, dated August of last year, after various unimportant legacies to servants, etc., she gave her entire fortune to her stepson, Mr. John Cavendish.” “Was not that—pardon the question, Mr. Cavendish—rather unfair to her other stepson, Mr. Lawrence Cavendish?” “No, I do not think so. You see, under the terms of their father’s will, while John inherited the property, Lawrence, at his stepmother’s death, would come into a considerable sum of money. Mrs.…

et John Cavendish.” “Yes?” “You can imagine that, from my aunts’ point of view, it was a very good match for me. But I can honestly say it was not this fact which weighed with me. No, he was simply a way of escape from the insufferable monotony of my life.” I said nothing, and after a moment, she went on: “Don’t misunderstand me. I was quite honest with him. I told him, what was true, that I liked him very much, that I hoped to come to like him more, but that I was not in any way what the world calls ‘in love’ with him. He declared that that satisfied him, and so—we were…

sion of medicine, and lived at home while pursuing literary ambitions; though his verses never had any marked success. John practised for some time as a barrister, but had finally settled down to the more congenial life of a country squire. He had married two years ago, and had taken his wife to live at Styles, though I entertained a shrewd suspicion that he would have preferred his mother to increase his allowance, which would have enabled him to have a home of his own. Mrs. Cavendish, however, was a lady who liked to make her own plans, and expected other people to fall in with…