在他们的财富中，有一些来自新企业；但其中有两个家庭是公爵和伯爵，他们的祖先拥有伦敦在十九世纪所扩张的土地。
Some of the wealth comes from new business ventures; but two of the five are a duke and an earl whose ancestors owned the fields across which London expanded in the nineteenth century.