“More stunning is their iterative powers, some holding firm since the days of Palmerston’s first premiership: the percentage of entrants whose parents’ wealth at death was in the top 1 per cent of national wealth is the same now as the 1850s. And when Friedman and Reeves traced more than 100 random families from the first editions of Who’s Who to today, 57 per cent had descendants who had later made the cut. In other words, if you have a family member in the elite, you are 120 times more likely to get there too compared with everyone else”
https://www.newstatesman.com/culture/books/book-of-the-day/2024/09/who-are-britains-new-aristocrats