Woops! I forgot! I mentioned the  "Greater Courts" before, and ignored the "Lesser Courts".  The greater courts are the Seelie/Unseelie and Season courts. They are first and foremost among the fae,  but  every king baron/knight/lord has a smaller ring of fae called a Lesser Court- with the highest ranking member in charge of keeps those specific fae in line,  as part of their  House/Dominion. much like English lords and  Vassals or Serfs.

In example, a Kings lesser court would comprise of all the  nobles elders and chosen warriors,  Were as a Barons  lesser court would have all of his kin, and those loyal to his family due to debt promises or domination.