Alliance–Union universe
It encompasses both books for which Cherryh won the Hugo Award for Best Novel , "Downbelow Station" and "Cyteen" , and also incorporates various other series books such as the "Faded Sun" trilogy , the "Chanur" novels , the four "Morgaine" books , and the "Merovingen Nights" shared universe series . 
<triplet> Hugo Award <subj> Best Novel <obj> has part <triplet> Best Novel <subj> Hugo Award <obj> instance of <triplet> Downbelow Station <subj> Best Novel <obj> award received <triplet> Cyteen <subj> Best Novel <obj> award received