ADJ [ADJ n]拥有(或包括)大量土地的;(尤指)有大量世袭土地的Landed means owning or including a large amount of land, especially land that has belonged to the same family for several generations. 拥有(或包括)大量土地的;(尤指)有大量世袭土地的
Most of them were the nobility and the landed gentry.
他们大多是贵族和地主乡绅。
...the erosion of the aristocracy's landed wealth.